Is West Beach free to access?

Yes, completely free at all times.

Can children swim here?

Swimming is generally not permitted. Children can wade in shallow water and play in the sand.

What is the difference between West Beach and East Beach?

West Beach (Nishi-Nagi-no-Hama) tends to be quieter and less crowded — generally preferred for young families.

What else is in Kasai Marine Park?

The park also includes Kasai Rinkai Aquarium, a bird sanctuary, a Ferris wheel, and walking trails — all in the same complex.

Kasai Marine Park West Beach

Name: Kasai Marine Park West Beach
Address: Tokyo, Japan, US
Telephone: 03-5696-4741
Rating: 4.4

Rating

4.4(166)

Family of 4

USD 0

Duration

1-2 hours

Best Ages

0-18

About

Kasai Marine Park West Beach (Nishi-Nagi-no-Hama) is a free sandy beach within the larger Kasai Marine Park complex in Edogawa Ward, offering families a genuinely pleasant seaside experience on Tokyo Bay without any admission cost. The beach is less crowded than the adjacent East Beach, making it a particularly good choice for families with young children who prefer more space and a calmer atmosphere.

The wide sandy shore gives kids ample room to build sandcastles, explore the tideline, and enjoy the open bay air while parents spread out a picnic blanket and relax. Tokyo Bay views stretch across the horizon, and on clear days the distant cityscape provides a dramatic backdrop for family photos. While swimming is not permitted, wading in shallow areas at the water's edge is a popular activity for younger children.

West Beach works best as part of a broader Kasai Marine Park outing — the world-class aquarium and bird sanctuary are nearby, and a Ferris wheel provides additional excitement. For families looking for a free outdoor Tokyo experience that feels nothing like the typical urban sightseeing circuit, Kasai West Beach delivers a genuinely refreshing change of pace.

Age Suitability

Infants (0-1)Toddlers (1-3)Little Kids (4-6)Big Kids (7-9)Tweens (10-12)Teens (13-17)

Parent Logistics

Stroller-Friendly

Setting

Rainy Day

Not ideal

Plan Your Visit

Best Time to Visit

Weekday mornings in spring or autumn; summer for sandcastles and wading

Wait Times

No wait

Nearby Food

Limited on-site facilities. The main Kasai Marine Park area has food stands and a restaurant. Kasai Station has convenience stores nearby.

Why Kids Love It

Kids love having a sandy beach all to themselves on weekdays — building sandcastles and exploring the shoreline with open Tokyo Bay views feels like a real seaside getaway.

Pro Tips from Parents

West Beach (Nishi-Nagi-no-Hama) is typically quieter than East Beach — a better bet for families with very young children.
Swimming is generally not permitted — this is a sandcastle-and-explore beach, not a swim beach.
Combine with a visit to Kasai Rinkai Aquarium nearby for a full-day Kasai Marine Park outing.