By car
Expressway north to its last exit at Kyoda IC, then Route 58 and Route 449 around the peninsula. About two hours from Naha Airport all in.
Parking at the aquarium and the park is free.
Most people drive two hours here, see the aquarium, and drive back. The peninsula holds considerably more than that — and much of it costs nothing.
Motobu is a peninsula on the north-west shoulder of Okinawa's main island, and it is the single densest concentration of things to see outside Naha. Churaumi Aquarium is the headline, but it sits inside a free national park, next to a beach, ten minutes from lanes of two-hundred-year-old trees, and across a bridge from an island with clear water.
The mistake visitors make is treating it as a single stop. Two hours each way from Naha is a long drive for one building — and the aquarium takes two to three hours, which leaves the rest of the day unaccounted for. This page is what fills it.
Whale sharks and manta rays behind one of the largest viewing panels in the world. Buy the voucher at Kyoda on the way and save ¥180.
The national park the aquarium sits inside. Free to enter, and the dolphin show at Okichan Theater is free to watch.
Lanes of old fukugi trees planted as windbreaks, running between houses down to the shore. Best early, before the tour buses.
A swimming beach inside Ocean Expo Park, a short walk from the aquarium. Seasonal swimming; the view works year-round.
Joined to the town by the Sesoko Ohashi bridge — no ferry needed. Some of the clearest water within driving distance of the aquarium.
The main beach on the island, and the one worth the detour if you have swimming time in the north.

Expressway north to its last exit at Kyoda IC, then Route 58 and Route 449 around the peninsula. About two hours from Naha Airport all in.
Parking at the aquarium and the park is free.
The Yanbaru Express Bus airport line runs from Naha Airport up the west coast to Kinen-Koen-mae, the stop for Ocean Expo Park.
It stops at Michi-no-Eki Kyoda on the way, so the discounted voucher works without a car.
Motobu Port has ferries to Ie Island, the flat island with the cone-shaped hill you can see from Bise. Nakijin Castle and Kouri Island are both about 30 minutes east.
About two hours by car, using the expressway to its final exit at Kyoda and then following the coast. The Yanbaru Express Bus airport line also runs to the Churaumi area, so a car is not essential.
If you want more than the aquarium, yes. Four hours of driving leaves a thin day. Staying over lets you walk Bise early — when it is quiet and cool — and puts Nakijin Castle and Kouri Island within reach the following morning.
Ocean Expo Park surrounds it and is free, dolphin show included. Bise has the fukugi lanes. Emerald Beach is inside the park. Sesoko Island is across a bridge with good swimming. Motobu Port runs ferries to Ie Island.
Michi-no-Eki Kyoda, at the end of the expressway, sells adult vouchers at ¥2,000 against the ¥2,180 gate price. Cash only, from 8:30 — earlier than the aquarium opens, and directly on your route.