Marine House Seasir Naha

Marine House Seasir Naha is a PADI 5 Star IDC Dive Resort and one of the largest dive operations in Okinawa, departing daily from Naha's Tomari Port to the stunning Kerama Islands. With multiple branches across Okinawa including a base on Aka Island in the Kerama chain, Seasir has been a trusted name in Okinawa diving for decades, welcoming tens of thousands of divers annually.

The operation runs its own fleet of large, comfortable dive boats designed for the Kerama crossing, reaching dive sites within 50 minutes. The Kerama National Marine Park offers world-class diving with over 200 species of coral, sea turtles on virtually every dive, and visibility that commonly exceeds 30 meters. Programs range from introductory snorkeling to professional-level PADI instructor courses.

Multilingual staff speak Japanese, English, Chinese, and Korean, making it accessible to the diverse international visitor base that Okinawa attracts. Full equipment rental is available, and the central Naha location near Tomari Port makes pre-dive logistics straightforward. Seasir's scale allows them to offer competitive pricing while maintaining high safety and service standards that have earned their PADI 5 Star IDC Resort status.