On its own island in Yokohama Bay, Hakkeijima Sea Paradise is a one-of-a-kind resort that fuses a major aquarium complex with an amusement park, shops and restaurants — a full day out for families and couples. Four themed aquariums house some 700 marine species, from whale sharks to penguins, with lively dolphin and sea-lion shows, while thrill-seekers ride a surf coaster that races out over the sea, a tall free-fall tower and a giant Ferris wheel. With sea views all around, hands-on animal encounters and rides for every age, Hakkeijima is one of the Tokyo area’s best all-in-one attractions.

This guide covers the aquariums, rides, tickets, the best time and access.

🗓️ Quick Reference
Location Hakkeijima island, Yokohama, Kanagawa
Highlights Aquariums, surf coaster, dolphin shows
Time needed Half to full day
Best time Year-round; lovely sea views
Good for Families, couples, animal lovers

The aquariums

  • Aqua Museum: the main aquarium with whale sharks, a huge sardine show and a dolphin pool.
  • Dolphin Fantasy, Fureai Lagoon & Umi Farm: touch, feed and interact with dolphins, rays and other sea life.
  • Lively dolphin and sea-lion shows run throughout the day.

Rides & island

  • The Surf Coaster Leviathan races out over the ocean; a free-fall Blue Fall tower and a Ferris wheel add to the thrills.
  • The island also has shopping, dining and a marina with sea views all around.

Tickets & tips

  • Various passes cover aquariums only, rides only, or everything — pick to match your plans.
  • Allow a full day to do both the aquariums and rides.
  • Easy to combine with central Yokohama on the Seaside Line.

Combine your visit

Hakkeijima pairs with Yokohama’s other family spots:

How to get there

  • Keikyu line to Kanazawa-Hakkeijima Station, then the Seaside Line to Hakkeijima.
  • ~1 hour from central Yokohama.