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Iriomote Hotel

Explore Sea Turtle Ecology: “Sea Turtle Discovery”

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Iriomote Hotel by Hoshino Resorts, aiming to be Japan's first "ecotourism resort" on the World Natural Heritage site Iriomote Island, will host "Sea Turtle Discovery" from June 1 to September 30, 2025. This activity lets guests observe wild sea turtles and learn about their ecology. Three of the world's seven sea turtle species inhabit Iriomote Island, including endangered green, hawksbill, and loggerhead turtles. Despite threats like plastic ingestion, their numbers are increasing, leading to new challenges. The tour, starting with "Sea Turtle School" and including nesting trace surveys and ocean observation, aims to foster a deeper connection to the island's nature and these vital creatures.

Features

1"Sea Turtle School" to Learn About Sea Turtle Ecology

Before heading out into the field, the “Sea Turtle School” will be held, where hotel guide staff will explain sea turtle ecology. This fun lecture covers how to distinguish between the three species of sea turtles inhabiting the waters around Iriomote Island, their diet, and nesting data from Tsukigahama Beach last year. Learning about sea turtles in advance will spark your interest in their ecology.

2Investigating Sea Turtle Nesting Traces with Hotel Guide Staff

Tsukigahama Beach, directly in front of the hotel, is a valuable natural environment where sea turtles actually come to lay their eggs. Guide staff regularly monitor the hotel surroundings, and during the active sea turtle nesting and hatching season from May to September, they investigate nesting trace every morning. On the tour, you’ll explore the beach with guide staff who are intimately familiar with the area, searching for nesting traces. If a nesting trace is found, the species will be identified from the footprints, and the diameter of the nesting site and sand temperature will be measured to understand the nesting conditions.

3Observing Sea Turtles in Their Natural Habitat

First, you’ll observe sea turtles gracefully swimming and feeding from a boat. By comparing what you observe with the characteristics learned in the prior lecture, such as how they use their flippers to swim and what they eat, you can gain a deeper understanding of sea turtle ecology. Afterwards, you’ll observe the underwater world while snorkeling. If you’re lucky, you might even be able to swim alongside a sea turtle while snorkeling.

Schedule
9:30 AM: Learn about sea turtle ecology at "Sea Turtle School"
10:30 AM: Depart for sea turtle survey with hotel guide staff
12:00 PM: Lunch break
1:30 PM: Depart from hotel
2:00 PM: Observe sea turtles from the boat
2:30 PM: Boat snorkeling (approx. 1.5 hours)
5:00 PM: Dismissal
Period
June 1 to September 30, 2025 (Held only on Fridays, Sundays, and Mondays)
Price
16,000 JPY per person (tax and service charge included)
Includes
Sea Turtle School, sea turtle survey, boat snorkeling, snorkeling rental set, lunch
Reservations
Book by 6:00 PM the day before on the Iriomote Hotel official website
Location
Tsukigahama Beach, Oku-Iriomote
Time
9:30 AM - 5:00 PM
Target Audience
Ages 10-65 (Children under 16 must be accompanied by a guardian)
Capacity
8 participants
Notes
May be cancelled or content changed due to weather. Will proceed in light rain (subject to guide's discretion).