PLEASE HELP!

ok, so ive grown up with surfing and my family is in the military. luckily we have always been stationed in some pretty awesome surf spots. well i remember surfing in okinawa when we were there was ok but FREAKIN cold in winter. but that was a LONG time ago and i was told today that we're being stationed in japan AGAIN. but somewhere in tokyo. please someone help me with info on the surf there or if there IS any surf there.