Nakaenoshima (中江ノ島) is an uninhabited island 2 km off the coast of Hirado, Japan.

[2] The island has minimal development, and its natural environment has remained unchanged since the Meiji Era.

The sea around Nakaenoshima has also not underwent major development and has been conserved in good condition.

[5] Tourists are prohibited from visiting the island due to its geography.

[7] Although the island is closed off to non-religious tourists, the city of Hirado has begun sponsoring waste clean-up missions to the island,[7] in hopes of conserving its preserved state.