Water clarity and gradation
The water is slightly below average for clarity compared with other beaches. Conditions were not good on the day of this visit — 2.5 m waves with a swell — but even allowing for that, Kouri Beach is exposed to wave action and tends to be less clear. The gradation is lovely towards the far end of the beach (right of the photograph), where the blue deepens.
Shade
There is no tree or rock shade on the beach, but the area under the Kouri Bridge is shaded. It is not large, but it is welcome in hot weather. Parasols are also available to hire — see the equipment section below.
Swimming and snorkelling
As mentioned above, you can snorkel inside the swimming area at Kouri Beach. Life jackets are not compulsory, though personally I would wear one. As shown in the photograph, the shop two minutes' walk from the beach (Ai-Island Kouri-jima Shoku to Yakata) hires out snorkels at ¥500 and life jackets at ¥500.
Showers, toilets, foot rinse and changing rooms
Toilets, showers and changing rooms are one to two minutes' walk from the beach. The showers are behind the wall marked "Shower" in the photograph. The changing rooms are where the man is standing at the back right. I could not find a foot rinse.
A note about the showers
The showers are ¥100, which is very cheap, but they are outdoors as you can see. They are also about 10 metres from the changing rooms, which may be inconvenient when there is a queue. If that bothers you, there are several shops across the road where you can use a shower instead.
Equipment hire and water sports
On the right of the photograph is the hire menu: a parasol set is ¥3,000 and rings are ¥300–500. On the left are the water sports prices: banana boat ¥2,000 for 10 minutes, marble ¥2,500 per person. Both are in line with other beaches.
Glass-bottom boat
A glass-bottom boat run by Kourijima Glass Boat Marine. Thirty to forty minutes at ¥3,000 for adults and ¥1,500 for children. You circle the island looking at coral and tropical fish, which makes for a full tour of Kouri.
Sightseeing boat
This sign was inside Ai-Island Kouri-jima Shoku to Yakata, two minutes' walk from the beach. A sightseeing boat runs 45 minutes for ¥2,500. On a clear day it might be worth going out in the hope of a sunset.
Restaurant and shop
Ai-Island Kouri-jima Shoku to Yakata, next to the beach, has a restaurant and a shop. The restaurant is priced more like a neighbourhood canteen than a tourist spot — a goya set meal is ¥630, a squid-ink set meal ¥1,050. Enlarge the photograph for the rest of the menu. The shop mostly sells souvenirs such as pineapple.
Blue Seal
There is a Blue Seal parlour too, with parasol tables to sit at.
Camping and barbecues
Camping is not allowed at Kouri Beach. Barbecues are not possible on this western beach, but on the eastern beach you can barbecue straight out of the water.
Beach yoga
We do not run beach yoga at Kouri Beach. The nearest beach where we do is 21st Century Forest Beach, 35–40 minutes away by car.