A free app for Android, by JJworkshop.

The SurfTide app provides the most accurate information on surf and tide conditions in Japan. You can use it to plan your surf trip or fishing trip. It is also useful for those who are interested in surfing and the marine life in the sea.

It displays the current and future tides for more than 340 places in Japan. It also displays the sunrise and sunset for your current location. It is useful for surfers and anglers.

It can be used even in places where the network is not connected. It is useful for people who want to know the tide conditions for the places they want to visit.