Water clarity and gradation
The grains of sand are on the coarse side and not easily stirred up, so the clarity is high. As written among the things to recommend above, you get the gradation in full as well.
Shade (parasols)
There is no shade on the beach itself, but a table with a parasol on the terrace (this photograph), a covered bench with a table, and a parasol and chair set on the beach can each be hired for ¥1,500 a day. At nearby beaches the equivalent was around ¥3,500 a day, so this is very cheap.
Shade (under the trees)
There is a little tree shade on the lawn in front of the beach. The thirteen white benches with tables are free to use, but they are not much shaded, so on a hot day hiring one of the sets above is the better plan.
Swimming and snorkelling
The swimming area is only the water inside the jellyfish net. Both ends of the beach are wide open, but swimming there is not allowed. There are fragments of coral about, so water shoes will save you from cuts. Swimming goggles may be used inside the swimming area, but snorkels are not allowed. Divers and snorkellers may find that disappointing, but at a beach with lifeguards and a jellyfish net, as Mission has, the rule is standard.
Fish
The swimming area is surrounded by a great deal of coral, so there are small fish. Fish food is sold for ¥100 and swimming goggles can be hired for ¥500. Small children who cannot manage goggles can enjoy it with a water scope. Beaches with this much coral right around the swimming area are rare — make the most of it.
Toilets, showers and foot rinse
There are separate men's and women's toilets; the building is not new, but it was clean. The showers are separate too, with hot showers at ¥300 and cold ones free. I looked into the free shower room (in the photograph): it is a little old and the floor is cracked concrete, but with beach sandals on it is nothing to worry about. There is no foot rinse, but the free showers make up for it.
Restaurant, café and shop
There is a parlour, but it was closed on the weekday I visited. Its closing days are irregular, so it is not certain to be open even at weekends. There are no restaurants or convenience stores within walking distance of the beach, so if you are planning to have lunch here it is worth ringing on the day to ask whether the parlour is open. There is a drinks vending machine in front of the shower room.
Marine activities and equipment hire
These are the prices for the marine activities and the hire equipment. The activities are cheaper than at other beaches, where a banana boat costs around ¥2,000. As noted above, the parasol sets are cheap too. It is not in this photograph, but water shoes can also be hired, for ¥500.
Camping and barbecues
Camping costs ¥700 per person plus ¥600 per car for parking (covering two days). It is a shame that charcoal is not allowed, but there is nothing to be done about it — being able to camp in a setting like this is much to be grateful for. For the campsite itself, see the photograph under You can camp here.