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Watch 197 live webcams in Japan: Kamikochi Kappa Bridge, Shibuya Crossing, Susukino Crossing, Aogashima Port, Mount Fuji from Fumotoppara. Each camera shows the local time and whether it is day or night right now.

Map
Kamikochi Kappa Bridge
LIVE36.250N 137.633E 408
Kamikochi Kappa BridgeKamikochi, Japan
Nature
Shibuya Crossing
LIVE35.659N 139.700E 177
Shibuya CrossingTokyo, Japan
Cities
Susukino Crossing
LIVE43.055N 141.353E 143
Susukino CrossingSapporo, Japan
Cities
Aogashima Port
LIVE32.458N 139.759E 142
Aogashima PortAogashima, Japan
Ports
Mount Fuji from Fumotoppara
LIVE35.417N 138.617E 81
Mount Fuji from FumotopparaFujinomiya, Japan
Nature
Satta Pass with Mount Fuji
LIVE35.010N 138.480E 79
Satta Pass with Mount FujiShizuoka, Japan
Nature
Dotonbori
LIVE34.668N 135.501E 78
DotonboriOsaka, Japan
Cities
Zenkoji Temple
LIVE36.661N 138.188E 78
Zenkoji TempleNagano, Japan
Cities
Shinjuku Omoide Yokocho
LIVE35.693N 139.700E 74
Shinjuku Omoide YokochoTokyo, Japan
Cities
Kishamichi Promenade
LIVE35.457N 139.638E 73
Kishamichi PromenadeYokohama, Japan
Cities
Kamikochi Bus Terminal
LIVE36.248N 137.633E 63
Kamikochi Bus TerminalKamikochi, Japan
Nature
Kugenuma Beach
LIVE35.310N 139.480E 63
Kugenuma BeachFujisawa, Japan
Beaches
Yumeshima Grand Ring
LIVE34.653N 135.389E 61
Yumeshima Grand RingOsaka, Japan
Cities
Bise, Motobu, Okinawa
LIVE26.705N 127.878E 56
Bise, Motobu, OkinawaMotobu, Japan
Beaches
Shinjuku O-Guard Crossing
LIVE35.693N 139.697E 45
Shinjuku O-Guard CrossingTokyo, Japan
Cities
Mount Hakodate
LIVE41.759N 140.704E 45
Mount HakodateHakodate, Japan
Cities
Yunokami Onsen Station
LIVE37.286N 139.876E 44
Yunokami Onsen StationShimogo, Japan
Nature
Uenohara Interchange
LIVE35.626N 139.108E 44
Uenohara InterchangeUenohara, Japan
Cities
Kisakata Nemunooka
LIVE39.190N 139.910E 42
Kisakata NemunookaNikaho, Japan
Beaches
Shinjuku Kabukicho Crossing
LIVE35.695N 139.703E 40
Shinjuku Kabukicho CrossingTokyo, Japan
Cities
Niseko Hanazono Resort
LIVE42.858N 140.687E 39
Niseko Hanazono ResortNiseko, Japan
Ski resorts
Mount Kongo
LIVE34.419N 135.673E 39
Mount KongoGose, Japan
Nature
Mount Fuji from Lake Kawaguchiko
LIVE35.517N 138.751E 38
Mount Fuji from Lake KawaguchikoFujikawaguchiko, Japan
Nature
Onomichi Strait
LIVE34.409N 133.198E 38
Onomichi StraitOnomichi, Japan
Ports
Shinjuku Station East Exit
LIVE35.690N 139.700E 37
Shinjuku Station East ExitTokyo, Japan
Cities
Sakurajima
LIVE31.585N 130.657E 36
SakurajimaTarumi, Japan
Nature
Mikurajima Port
LIVE33.897N 139.596E 36
Mikurajima PortMikurajima, Japan
Ports
Shinsaibashi Shopping Street
LIVE34.674N 135.501E 35
Shinsaibashi Shopping StreetOsaka, Japan
Cities
Akashi Strait Bridge
LIVE34.630N 135.033E 34
Akashi Strait BridgeKobe, Japan
Beaches
Busena Beach
LIVE26.539N 127.936E 33
Busena BeachNago, Japan
Beaches
Hakodate Station
LIVE41.774N 140.727E 32
Hakodate StationHakodate, Japan
Cities
Kyoto Station Hachijo Taxi Stand
LIVE34.985N 135.758E 32
Kyoto Station Hachijo Taxi StandKyoto, Japan
Cities
Enoshima
LIVE35.299N 139.480E 31
EnoshimaFujisawa, Japan
Beaches
Shinjuku
LIVE35.695N 139.700E 29
ShinjukuTokyo, Japan
Cities
Mount Aso and Kusasenri
LIVE32.884N 131.047E 29
Mount Aso and KusasenriAso, Japan
Nature
Mount Moiwa Summit
LIVE43.026N 141.322E 29
Mount Moiwa SummitSapporo, Japan
Nature
Momiji Lake
LIVE35.915N 137.965E 29
Momiji LakeMinowa, Japan
Nature
Katase Beach East
LIVE35.309N 139.487E 28
Katase Beach EastFujisawa, Japan
Beaches
Kyoto Station Bus Terminal
LIVE34.985N 135.758E 25
Kyoto Station Bus TerminalKyoto, Japan
Cities
Tokyo Bay from Shuto Expressway
LIVE35.645N 139.775E 24
Tokyo Bay from Shuto ExpresswayTokyo, Japan
Cities
Togetsukyo Bridge
LIVE35.013N 135.678E 24
Togetsukyo BridgeKyoto, Japan
Cities
Kokusai-dori
LIVE26.214N 127.679E 23
Kokusai-doriNaha, Japan
Cities
Yushima Cat Island
LIVE32.567N 130.417E 21
Yushima Cat IslandKamiamakusa, Japan
Nature
Tokyo Bay from Odaiba
LIVE35.630N 139.775E 21
Tokyo Bay from OdaibaTokyo, Japan
Ports
Saigo Port
LIVE36.203N 133.322E 21
Saigo PortOkinoshima, Japan
Ports
Senso-ji Temple, Asakusa
LIVE35.714N 139.797E 21
Senso-ji Temple, AsakusaTokyo, Japan
Cities
Shiodome
LIVE35.663N 139.760E 21
ShiodomeTokyo, Japan
Cities
Tokyo Bay
LIVE35.617N 139.800E 20
Tokyo BayTokyo, Japan
Ports
Tanukikoji Shopping Street
LIVE43.055N 141.353E 20
Tanukikoji Shopping StreetSapporo, Japan
Cities
Hakata Station
LIVE33.590N 130.421E 20
Hakata StationFukuoka, Japan
Cities
Fushino Coast
LIVE35.530N 134.190E 20
Fushino CoastTottori, Japan
Beaches
Mount Fuji from Oshino Hakkai
LIVE35.460N 138.832E 20
Mount Fuji from Oshino HakkaiOshino, Japan
Nature
730 Intersection
LIVE24.344N 124.157E 19
730 IntersectionIshigaki, Japan
Cities
Mount Utsukushigahara
LIVE36.226N 138.147E 17
Mount UtsukushigaharaUtsukushigahara, Japan
Nature
Kanmon Strait from Moji Port
LIVE33.948N 130.963E 17
Kanmon Strait from Moji PortKitakyushu (Moji), Japan
Ports
Shirahama Beach
LIVE33.679N 135.345E 17
Shirahama BeachShirahama, Japan
Beaches
Kusatsu Onsen Yubatake
LIVE36.622N 138.596E 16
Kusatsu Onsen YubatakeKusatsu, Japan
Cities
Sendai Station
LIVE38.260N 140.880E 16
Sendai StationSendai, Japan
Cities
Akabane Station
LIVE35.778N 139.721E 15
Akabane StationTokyo, Japan
Cities
Sakurajima and Kotsuki River
LIVE31.596N 130.557E 15
Sakurajima and Kotsuki RiverKagoshima, Japan
Nature
Osaka Bay
LIVE34.660N 135.420E 15
Osaka BayOsaka, Japan
Ports
Miura Beach
LIVE35.140N 139.620E 14
Miura BeachMiura, Japan
Beaches
Sunport Takamatsu
LIVE34.353N 134.046E 14
Sunport TakamatsuTakamatsu, Japan
Ports
Sakurajima and Kagoshima City
LIVE31.596N 130.557E 14
Sakurajima and Kagoshima CityKagoshima, Japan
Nature
Osaka Station Sakurabashi Gate
LIVE34.701N 135.495E 14
Osaka Station Sakurabashi GateOsaka, Japan
Cities
Sakurajima volcano
LIVE31.585N 130.657E 13
Sakurajima volcanoTarumizu, Japan
Nature
Arashiyama Bamboo Grove
LIVE35.017N 135.672E 13
Arashiyama Bamboo GroveKyoto, Japan
Nature
Osaka Itami Airport
LIVE34.785N 135.438E 13
Osaka Itami AirportItami, Japan
Cities
Kiyomizu-zaka
LIVE34.995N 135.785E 13
Kiyomizu-zakaKyoto, Japan
Cities
Yawatahama Ferry Terminal
LIVE33.460N 132.420E 12
Yawatahama Ferry TerminalYawatahama, Japan
Ports
Naha Airport
LIVE26.206N 127.646E 12
Naha AirportNaha, Japan
Beaches
Shinjuku Kabukicho
LIVE35.695N 139.703E 12
Shinjuku KabukichoTokyo, Japan
Cities
Shinhotaka Ropeway
LIVE36.283N 137.567E 12
Shinhotaka RopewayTakayama, Japan
Nature
Akihabara Station Central Gate
LIVE35.698N 139.774E 12
Akihabara Station Central GateTokyo, Japan
Cities
Futako Tamagawa
LIVE35.611N 139.627E 12
Futako TamagawaTokyo, Japan
Cities
Osaka Station Area
LIVE34.702N 135.496E 11
Osaka Station AreaOsaka, Japan
Cities
Takao Station
LIVE35.642N 139.282E 11
Takao StationHachioji, Tokyo, Japan
Cities
Kurushima Strait near Imabari Port
LIVE34.066N 133.000E 11
Kurushima Strait near Imabari PortImabari, Japan
Ports
Odaiba Beach Park
LIVE35.630N 139.774E 11
Odaiba Beach ParkTokyo, Japan
Cities
Higashi Honganji
LIVE34.991N 135.751E 11
Higashi HonganjiKyoto, Japan
Cities
Saikazaki Fishing Port
LIVE34.190N 135.141E 11
Saikazaki Fishing PortWakayama, Japan
Beaches
Arakawa River
LIVE35.780N 139.850E 10
Arakawa RiverTokyo, Japan
Nature
Amaharashi Coast
LIVE36.793N 137.055E 10
Amaharashi CoastTakaoka, Japan
Beaches
Kamogawa Seaside
LIVE35.114N 140.099E 10
Kamogawa SeasideKamogawa, Japan
Beaches
National Route 39
LIVE43.770N 142.365E 10
National Route 39Asahikawa, Japan
Cities
Tadanoumi Port
LIVE34.337N 132.994E 10
Tadanoumi PortTakehara, Japan
Ports
Yahata
LIVE38.268N 140.868E 10
YahataSendai, Japan
Cities
Tokyo Dome City
LIVE35.705N 139.752E 9
Tokyo Dome CityTokyo, Japan
Cities
Koshigoe Beach
LIVE35.308N 139.487E 9
Koshigoe BeachKamakura, Japan
Beaches
Mount Fuji from Fuji City
LIVE35.161N 138.676E 9
Mount Fuji from Fuji CityFuji, Japan
Nature
Adachi Crossing
LIVE35.775N 139.805E 9
Adachi CrossingTokyo, Japan
Cities
Shinsaibashi Nagahoribashi Intersection
LIVE34.674N 135.501E 9
Shinsaibashi Nagahoribashi IntersectionOsaka, Japan
Cities
Kanmon Bridge
LIVE33.961N 130.958E 9
Kanmon BridgeShimonoseki, Japan
Ports
Shichirigahama Beach
LIVE35.306N 139.514E 8
Shichirigahama BeachKamakura, Japan
Beaches
Kokusai Street
LIVE26.216N 127.689E 8
Kokusai StreetNaha, Japan
Cities
Miyazaki Airport
LIVE31.877N 131.449E 8
Miyazaki AirportMiyazaki, Japan
Cities
Iwai Beach
LIVE34.983N 139.867E 8
Iwai BeachMinamiboso, Japan
Beaches
Philosopher's Path
LIVE35.027N 135.795E 8
Philosopher's PathKyoto, Japan
Cities
Tokyo Bay & Rainbow Bridge
LIVE35.636N 139.763E 8
Tokyo Bay & Rainbow BridgeTokyo, Japan
Cities
Hisaya Odori Park
LIVE35.172N 136.908E 8
Hisaya Odori ParkNagoya, Japan
Cities
Ginowan Coast, Okinawa
LIVE26.281N 127.778E 8
Ginowan Coast, OkinawaGinowan, Japan
Beaches
Rishiri Island Maebama
LIVE45.183N 141.183E 7
Rishiri Island MaebamaRishiri, Japan
Beaches
Sasagawa Nagare Coast
LIVE38.368N 139.448E 7
Sasagawa Nagare CoastMurakami, Japan
Beaches
Shirarahama Beach
LIVE33.679N 135.348E 7
Shirarahama BeachShirahama, Japan
Beaches
Sunshine 60 Street
LIVE35.729N 139.718E 7
Sunshine 60 StreetTokyo, Japan
Cities
Mikuni Sunset Beach
LIVE36.220N 136.140E 7
Mikuni Sunset BeachMikuni, Fukui, Japan
Beaches
Tottori Sand Dunes
LIVE35.540N 134.228E 7
Tottori Sand DunesTottori, Japan
Nature
Sotoura Beach
LIVE34.667N 138.945E 7
Sotoura BeachShimoda, Japan
Beaches
Southern Beach Chigasaki
LIVE35.317N 139.406E 7
Southern Beach ChigasakiChigasaki, Japan
Beaches
Mount Fuji from Kawaguchiko
LIVE35.517N 138.751E 6
Mount Fuji from KawaguchikoFujikawaguchiko, Japan
Nature
Kappa-buchi
LIVE39.327N 141.533E 6
Kappa-buchiTono, Japan
Nature
Mount Moiwa Ropeway
LIVE43.029N 141.323E 6
Mount Moiwa RopewaySapporo, Japan
Nature
Tokushima Station and Mount Bizan
LIVE34.070N 134.551E 6
Tokushima Station and Mount BizanTokushima, Japan
Cities
Osaka Skyline from Abeno Harukas
LIVE34.646N 135.514E 6
Osaka Skyline from Abeno HarukasOsaka, Japan
Cities
Fukushima-ku
LIVE34.694N 135.472E 6
Fukushima-kuOsaka, Japan
Cities
Nipponbashi
LIVE34.659N 135.506E 6
NipponbashiOsaka, Japan
Cities
Makurazaki
LIVE31.272N 130.297E 6
MakurazakiMakurazaki, Japan
Beaches
Kobe Airport
LIVE34.632N 135.224E 6
Kobe AirportKobe, Japan
Ports
Fushimi Inari Taisha
LIVE34.967N 135.773E 6
Fushimi Inari TaishaKyoto, Japan
Cities
Tsuruhashi Korea Town
LIVE34.665N 135.530E 6
Tsuruhashi Korea TownOsaka, Japan
Cities
Kitano Tenmangu Shrine
LIVE35.031N 135.735E 5
Kitano Tenmangu ShrineKyoto, Japan
Cities
Tama Hills Sky
LIVE35.637N 139.446E 5
Tama Hills SkyTama, Japan
Nature
Port of Akita
LIVE39.720N 140.070E 5
Port of AkitaAkita, Japan
Ports
Obama, Fukui
LIVE35.495N 135.746E 5
Obama, FukuiObama, Japan
Cities
Shirahama Ohama Beach
LIVE34.667N 138.945E 5
Shirahama Ohama BeachShimoda, Japan
Beaches
Minatomirai
LIVE35.457N 139.632E 4
MinatomiraiYokohama, Japan
Cities
Rainbow Bridge Odaiba
LIVE35.636N 139.763E 4
Rainbow Bridge OdaibaTokyo, Japan
Cities
Edogawa River View
LIVE35.732N 139.897E 4
Edogawa River ViewTokyo, Japan
Cities
Yonago Ryozan Yanagi
LIVE35.428N 133.331E 4
Yonago Ryozan YanagiYonago, Japan
Cities
Utsukushigahara Highlands
LIVE36.226N 138.135E 4
Utsukushigahara HighlandsNagawa, Japan
Nature
Kashima Beach
LIVE35.766N 140.850E 4
Kashima BeachHasaki, Japan
Beaches
Ryogoku, Sumida
LIVE35.696N 139.793E 4
Ryogoku, SumidaTokyo, Japan
Cities
Motoyawata Station North Exit
LIVE35.723N 139.927E 4
Motoyawata Station North ExitIchikawa, Japan
Cities
Kiso Observatory Night Sky
LIVE35.798N 137.803E 4
Kiso Observatory Night SkyKiso, Japan
Nature
Ginkaku-ji Temple
LIVE35.027N 135.798E 4
Ginkaku-ji TempleKyoto, Japan
Cities
Okushiri Island
LIVE42.172N 139.514E 4
Okushiri IslandOkushiri, Japan
Beaches
Zushi Beach
LIVE35.294N 139.573E 4
Zushi BeachZushi, Japan
Beaches
Aburatsu Coast
LIVE31.583N 131.408E 4
Aburatsu CoastNichinan, Japan
Beaches
Mount Fuji from Tokyo
LIVE35.689N 139.692E 3
Mount Fuji from TokyoTokyo, Japan
Nature
Fushimi Inari Shrine
LIVE34.967N 135.773E 3
Fushimi Inari ShrineKyoto, Japan
Cities
Sapporo Cityscape
LIVE43.062N 141.354E 3
Sapporo CityscapeSapporo, Japan
Cities
Odaiba Beach
LIVE35.630N 139.775E 3
Odaiba BeachTokyo, Japan
Beaches
Mount Fuji from Lake Yamanaka
LIVE35.416N 138.876E 3
Mount Fuji from Lake YamanakaYamanakako, Japan
Nature
Kabukicho Ichibangai
LIVE35.695N 139.702E 3
Kabukicho IchibangaiTokyo, Japan
Cities
Odaiba
LIVE35.630N 139.775E 3
OdaibaTokyo, Japan
Cities
Ishigaki Port
LIVE24.340N 124.157E 3
Ishigaki PortIshigaki, Japan
Ports
Kawaguchiko Station
LIVE35.498N 138.769E 3
Kawaguchiko StationFujikawaguchiko, Japan
Cities
Shin-Osaka Station Taxi Area
LIVE34.733N 135.500E 3
Shin-Osaka Station Taxi AreaOsaka, Japan
Cities
Shinjuku and Okubo
LIVE35.701N 139.700E 3
Shinjuku and OkuboTokyo, Japan
Cities
Shinonome, Tokyo Bay
LIVE35.646N 139.800E 3
Shinonome, Tokyo BayTokyo, Japan
Cities
Amakusa Airport
LIVE32.482N 130.159E 3
Amakusa AirportAmakusa, Japan
Cities
Peshimisaki Cape
LIVE45.243N 141.221E 3
Peshimisaki CapeRishiri Island, Japan
Ports
Zaimokuza Beach
LIVE35.306N 139.548E 3
Zaimokuza BeachKamakura, Japan
Beaches
Kabukicho Cine City Square
LIVE35.695N 139.702E 2
Kabukicho Cine City SquareTokyo, Japan
Cities
Kushiro Nusamai Bridge
LIVE42.980N 144.375E 2
Kushiro Nusamai BridgeKushiro, Japan
Cities
Tokyo Bay from Daiba
LIVE35.630N 139.775E 2
Tokyo Bay from DaibaTokyo, Japan
Ports
Kabira Bay
LIVE24.457N 124.142E 2
Kabira BayIshigaki, Japan
Beaches
Kurosaka
LIVE35.183N 133.283E 2
KurosakaKurosaka, Hino, Tottori, Japan
Nature
Kushiro River Mouth
LIVE42.977N 144.383E 2
Kushiro River MouthKushiro, Japan
Nature
Mount Yotei
LIVE42.827N 140.812E 2
Mount YoteiNiseko, Japan
Nature
Mount Nagata
LIVE30.366N 130.500E 2
Mount NagataYakushima, Japan
Nature
Mount Fuji from Susono
LIVE35.174N 138.906E 2
Mount Fuji from SusonoSusono, Japan
Nature
Yatomi Ushizu
LIVE35.110N 136.720E 2
Yatomi UshizuYatomi, Japan
Cities
Chuo
LIVE35.607N 140.123E 2
ChuoChiba, Japan
Cities
Omotezao
LIVE38.170N 140.400E 2
OmotezaoYamagata, Japan
Nature
Kifune Shrine
LIVE35.122N 135.763E 2
Kifune ShrineKyoto, Japan
Nature
Kaiwo Maru and Tateyama Range
LIVE36.777N 137.083E 2
Kaiwo Maru and Tateyama RangeImizu, Japan
Ports
Hitotsumatsu Coast
LIVE35.412N 140.372E 2
Hitotsumatsu CoastChosei, Japan
Beaches
Enoshima from Kamakura
LIVE35.307N 139.500E 2
Enoshima from KamakuraKamakura, Japan
Beaches
Shinmaiko Beach
LIVE35.304N 139.842E 2
Shinmaiko BeachFuttsu, Japan
Beaches
Hiratsuka Beach
LIVE35.311N 139.354E 2
Hiratsuka BeachHiratsuka, Japan
Beaches
Utsumi Beach
LIVE34.700N 136.950E 2
Utsumi BeachMinamichita, Japan
Beaches
Mount Hakusan Murodo
LIVE36.155N 136.771E 1
Mount Hakusan MurodoHakusan, Japan
Nature
Mount Akadake
LIVE35.971N 138.370E 1
Mount AkadakeYatsugatake, Japan
Nature
Kabukicho Godzilla Square
LIVE35.695N 139.701E 1
Kabukicho Godzilla SquareShinjuku, Tokyo, Japan
Cities
Atsuta Coast
LIVE43.283N 141.383E 1
Atsuta CoastIshikari, Japan
Beaches
Eikando Temple
LIVE35.015N 135.794E 1
Eikando TempleKyoto, Japan
Cities
Heian Jingu Shrine
LIVE35.016N 135.782E 1
Heian Jingu ShrineKyoto, Japan
Cities
Hadano Bridge
LIVE35.371N 139.220E 1
Hadano BridgeHadano, Japan
Nature
Mount Fuji
LIVE35.361N 138.728E
Mount FujiYamanakako, Japan
Nature
Mount Bizan
LIVE34.070N 134.550E
Mount BizanTokushima, Japan
Cities
Yubara Onsen
LIVE35.183N 133.717E
Yubara OnsenManiwa, Japan
Nature
Niigata Prefectural Government Forest
LIVE37.902N 139.024E
Niigata Prefectural Government ForestNiigata, Japan
Nature
Kami-Fukuoka Station East Exit
LIVE35.876N 139.519E
Kami-Fukuoka Station East ExitFujimino, Japan
Cities
Ochanomizu
LIVE35.699N 139.765E
OchanomizuTokyo, Japan
Cities
Aoyama Beach Sunset
LIVE37.906N 139.036E
Aoyama Beach SunsetNiigata, Japan
Beaches
Fujimi
LIVE35.610N 140.123E
FujimiChiba, Japan
Cities
Ueno Expressway
LIVE35.708N 139.774E
Ueno ExpresswayTokyo, Japan
Cities
Kutsugata Coast
LIVE45.180N 141.140E
Kutsugata CoastRishiri, Japan
Beaches
Osaka Skyline
LIVE34.693N 135.502E
Osaka SkylineOsaka, Japan
Cities
Tsukiji and Minato Skyline
LIVE35.665N 139.770E
Tsukiji and Minato SkylineTokyo, Japan
Cities
Tsutenkaku and Abeno Harukas
LIVE34.652N 135.506E
Tsutenkaku and Abeno HarukasOsaka, Japan
Cities
Muko Machiterasu
LIVE34.948N 135.700E
Muko MachiterasuMuko, Japan
Cities
TIMELAPSE26.444N 127.773E
KadenaKadena, Japan
Beaches
TIMELAPSE26.224N 127.683E
NahaNaha, Japan
Ports
TIMELAPSE35.694N 139.754E
ChiyodaChiyoda, Japan
Cities
TIMELAPSE27.092N 142.189E
Ohmura BeachOgasawara, Japan
Beaches

Frequently asked questions

How many live webcams are there in Japan?

Overlook Cams lists 197 cameras in Japan; 193 of them were streaming live at the last check on 2026-11-09 03:08 (UTC).

What are the most popular webcams in Japan?

The most watched ones right now are Kamikochi Kappa Bridge (Kamikochi), Shibuya Crossing (Tokyo), Susukino Crossing (Sapporo), Aogashima Port (Aogashima).

Do I need to pay or sign up to watch webcams in Japan?

No. Every camera on Overlook Cams is free to watch in the browser, with no sign-up. An optional free account only syncs your favorites between devices.