Exploring the Endemic Species of the Ryukyu Islands
The Ryukyu Island Arc is divided into North, Central, and South Ryukyu by the Kerama Gap and Tokara Strait. Throughout the ice ages, these islands were repeatedly connected to and separated from the mainland, resulting in a unique biodiversity. The mountainous Yambaru region in northern Okinawa, Iriomote Island, Tokunoshima, and Amami Oshima have all been collectively designated as UNESCO World Natural Heritage sites.
Hi, I’m Wanyu — Your Certified Nature Guide in Yambaru
Originally from Taiwan and a resident of Kunigami Village since 2017, I hold a Master’s degree in Ecology and Evolutionary Biology. I focus on turning scientific knowledge into real-world discoveries, leading you into the forest to encounter Yambaru’s extraordinary wildlife firsthand.
- Professional Credentials: The only certified English-speaking guide in Kunigami / Okinawa Tourism Ambassador (Nature).
- Global Experience: I have proudly hosted guests from numerous countries, providing professional insights and deep local knowledge.
- Academic Background: M.S. in Ecology and Evolutionary Biology.
- Core Expertise: Okinawa Rail, endemic herpetofauna, and forest ecosystems.
Mammals
The four World Natural Heritage islands are home to around 21 species of mammals, including 13 endemic species.
Birds
About 300 bird species can be observed on the four World Heritage islands, including 6 endemic species, 3 of which are found in Yanbaru.
Reptiles
Approximately 36 species of land reptiles, including 23 endemic species, can be found across the four islands.
Amphibians
Around 21 amphibian species, including 18 endemics, inhabit the four World Natural Heritage islands.
Insects
The islands boast an incredible diversity of insects, with around 6,000 species, including 1,600 endemics.
Other Animals
There are 47 species of terrestrial crustaceans, including 15 endemics. This section also includes other invertebrates.
Plants
Roughly 2,000 species of vascular plants, including 200 endemics, grow across the four World Natural Heritage islands.
Invasive Species
Explore the invasive animals and plants on the four World Heritage islands, as designated by Japan’s Specific Invasive Species list.
Recent Observation Records
Bird watching in Yanbaru. - Wanyu is the best guide!!! She has a knowledge and understand wildlife. Friendly and polite so we really feel comfortable during the tour.
If you have time. Please come to... read more
GoPlaces274029528882025-04-14
Memorable Trip - Wanyu is a professional in finding reptiles and amphibians. She led us to observe many amazing moths, snakes, frogs, and newts, some of which can only be found in Okinawa.... read more
ritaj9542025-03-31
The one and only experienced guide in Yanbaru - Our guide, Wanyu, is incredibly knowledgeable and passionate about the flora and fauna of the national park – she truly feels at one with nature.
We asked to see... read more
Fanshimausu L2025-03-08
Explore Yambaru and the World Heritage Islands