Many people do not know that there are natural hot springs in Tokyo. One of them is Pinghe Island Hot Spring, which is very close to Haneda Airport. If you have time to change planes at Haneda Airport, you can go here. It's more convenient and comfortable, with food and drink.
The transportation is very convenient, the water quality is good, the service is thoughtful!
I missed the bus stop when I took the bus from Dasen (...) There are seven or eight pools in the hot spring. There are more elderly people on working days. There are lounges and small libraries in the hot spring. They can eat at 11 o'clock at noon. They are clean. They can also give bus tickets for return journey. The cost-effective ratio is also good. If you have massage, you don't know whether you need to make an appointment or not.
How about a car to Haneda Airport in the middle of the night? Our plane at 6:30 a.m.
Typical Japanese hot springs are also a kind of culture.
Breakfast is OK, but not for overnight. It's a bit noisy.