Yotsukaido

Yotsukaidō sits inland in Chiba Prefecture, not on the coast. It isn’t a primary diving base, but Lake Hinuma nearby provides freshwater diving access for training and practice through local clubs. The city itself acts as a gateway for those visiting the region who want to combine inland exploration with nearby diving options in the wider Kanto area. For divers, planning would center on using larger coastal hubs within reach of Tokyo for boat dives and reef experiences, rather than local dive sites in the city.