Wanna beach??
What's summer for you?
Summer = beach !?
I recommend some nice beaches in Japan today :)
If you have enough time and money, Okinawa is definitely the best to visit!

Okinawa is southen islands about 1,600 km away from Tokyo.
Especially, the small islands are great to relax, and the coral reef are amazing!!
The flight from Tokyo to Okinawa (main island) takes 2.5 hours, and costs about 33,000 yen (one way). Okinawa has many cheap hostels, budget hotels, and of cource gorgeous hotels as well ;)
OKINAWA >> http://www.okinawa-information.com/content/okinawa-beach-guide
If you have time, but not enough money to fly, I recommend Izu area which is the closest paradise from Tokyo!
Izu is a peninsula, and there're many beautiful beaches in the south part of it.
You can enjoy variety of marine sports such as diving, surfing, fishing, sea kayaking and so on.


If you take express trains, takes 2.5 hours from Tokyo, and costs about 7,000 yen (one way).
If you take local trains, takes 3.5 hours, and costs only 4,000 yen.
Izu is also known for hot spa.
Swim in the lovely beach, have sea food BBQ, and take hot spa! It would make you so much refreshed :)
IZU >> http://www.izu-kankou.or.jp/en/index.html
If you want to go for 1 day trip to lay down, or feel the sea breeze, Shonan beach would be nice.

It's just 1 hour ride on the train from Tokyo, and costs about 1,000 yen to get there. Near Kamakura, and nice to explore the city too.
Many cool beach houses are recently built in summer only, and they're having parties during the holiday =)
Yuigahama beach houses >> http://yuigahama.shonan-clip.jp/shops (sorry, only in Japanese)
Everyone, don't work too hard!
It's time for beaches ;D