Otsuki Ecology Camp in Otsuki town, Kochi Prefecture, will offer two packages for multi-night guests starting May 7, 2026. The "Sea Fun" package (according to one source) or "Hands-Free Beach" package (according to another) includes rental of snorkeling masks, life jackets, fins, water guns, and other gear. The price starts at 5750 yen per person (based on double occupancy).
The "Premium" package (also called "Premium 2 Nights 3 Days") additionally provides an action camera and SD card (or memory card). The price starts at 7000 yen per person. The promotion runs until October 31, 2026. The campground is operated by FoundingBase (headquartered in Setagaya, Tokyo, CEO Kenji Yamamoto).