Forest Adventure Iya Valley Zipline & Treetop Canopy Course

Forest Adventure Iya Valley is a treetop canopy course and zipline park set among cedar forest above the Nishi-Iya valley in Miyoshi, Tokushima, combining a series of aerial obstacle courses with multiple ziplines strung between platforms overlooking the surrounding mountains. The course takes 1.5 to 2 hours to complete and is graded by difficulty, with beginner courses suitable for children (typically from around 110-120 cm in height, per standard Forest Adventure network rules) and more challenging courses requiring greater upper-body strength and balance for adults; no prior climbing or zipline experience is necessary, since staff give a mandatory ground briefing and practice run before participants are cleared onto the course. All climbing equipment is included in the admission price: a full-body harness, carabiners, and a pulley system with a continuous belay line that stays clipped in at all times, so it is technically impossible to fall from the platforms if the safety system is used correctly. Participants should wear closed-toe athletic shoes, avoid loose clothing or jewelry that could snag on the equipment, and tie back long hair; gloves are usually provided or available for rent to protect hands on the zipline cables. Forest Adventure operates as part of a wider Japanese franchise network with standardized safety protocols, and staff monitor each course from the ground and via radio, with an evacuation procedure in place for participants unable to complete an obstacle or in the rare event of a mechanical issue. The park operates April through November, closing for the winter months when cold temperatures and potential ice make the aerial equipment unsafe; light rain does not usually halt operations, but lightning or high wind can suspend zipline sections for safety. Weekday visits in shoulder-season months see shorter waits than weekend and summer-holiday crowds.