Beach & Entry
Surface, sand, water entry and bottom
Surface Type
Main surface type
sand
Sand Color
Main sand colour
grey
Water Entry
How steep the drop-off is
gentle
Shallow Distance
Metres to waist-deep water
20 m
Bottom Type
Main bottom type
sand
Water Shoes
Whether special footwear is needed
required
Beach Length
Beach length in metres
830 m
Frequently asked questions
Kasai Kaihin Park Beach: what is the water like at this beach?
At this beach, water colour — grey, clarity murky, average temperature +24.0°C, warms up to +27.0°C in the warmest season. Check the exact temperature by month in the chart section.
Kasai Kaihin Park Beach: what are the waves like and is it safe to swim?
Waves at this beach are — calm. Average wave height — 0.2 m. Calm water is great for families with children and those who prefer not to deal with strong swell.
Kasai Kaihin Park Beach: what is the water entry and bottom like?
Water entry is — gentle. The shallow area extends for 20 metres from the shore. Bottom — sand. Special water shoes (aqua shoes) are required — the bottom has rocks, corals or sea urchins. The gentle slope is safe for children and inexperienced swimmers.
Kasai Kaihin Park Beach: what kind of sand and surface does the beach have?
Beach surface — sand. Sand colour — grey. Texture — coarse. Beach length — 830 metres.
Kasai Kaihin Park Beach: when is the swimming season?
The swimming season starts in July. It ends in August. The best month for a holiday is July. This is when the water is warmest and the weather is most comfortable.
Kasai Kaihin Park Beach: is it safe to swim?
Water quality is rated as moderate. Rip currents are unlikely. Jellyfish risk — low. Always watch for warning signs and follow lifeguards instructions.
Kasai Kaihin Park Beach: which dangerous creatures live in the water?
The water contains: jellyfish (rare). We recommend wearing protective footwear, not touching marine life and taking care when entering the water.
Kasai Kaihin Park Beach: what infrastructure is available on the beach?
The beach offers: showers, toilets, changing rooms, parking, kids playground. All amenities are listed in the "Infrastructure" section above.
Kasai Kaihin Park Beach: are there lifeguards and a first aid station?
Lifeguards are on duty on the beach — an important safety factor.
Kasai Kaihin Park Beach: where can I eat near the beach?
Popular places nearby: Kasai Rinkai Park Cafes. Cuisines available: Japanese. See the "Infrastructure" section for details.
Kasai Kaihin Park Beach: what should I bring to the beach?
We recommend bringing: SPF50+ cream, Hat, Towel, Swimsuit, Cash, Water, Water shoes.
Kasai Kaihin Park Beach: when is the best time to swim?
Swimming is permitted only in summer months and when water quality is good. Best time is July and August, morning has fewer people.
Kasai Kaihin Park Beach: what are the rules and restrictions on the beach?
Swimming only with permission. Do not leave trash. Tents, glass bottles and BBQs are prohibited.
Kasai Kaihin Park Beach: who is this beach best for?
Ideal for Tokyo residents wanting to enjoy a beach and bay views without leaving the city, as well as families with children thanks to shallow water and developed infrastructure. Not suitable for those seeking clean seawater and solitude.
Kasai Kaihin Park Beach: what makes this beach unique?
The only beach in Tokyo where swimming in seawater is officially permitted. The beach is divided into a western (recreational) and eastern (conservation) zone, connected by the Nagisa Bridge.
Kasai Kaihin Park Beach: what are the pros and cons of the beach?
Pros: Close to central Tokyo, Free entry, Changing rooms and showers, Tokyo Bay views, Near Kasai Rinkai Park with aquarium and Ferris wheel, Shell gathering in season. Cons: Swimming limited by water quality, Coarse sand with sharp objects, Polluted bay water, No natural shade, Swimming only with permission.
Kasai Kaihin Park Beach: what is near the beach?
Nearby you can visit: Kasai Rinkai Park, Tokyo Disney Resort. Detailed descriptions in the "Nearby" section above.
Kasai Kaihin Park Beach: how do I get to the city of Tokyo?
The beach is located near the city of Tokyo. Full information about the city — hotels, restaurants, attractions, transport — is available on the
city page for Tokyo.