If you have vacation days saved up, you should consider planning a visit to Kamakura. This small charming city is full of temples, shrines, beaches, and monuments, and remains to be a very popular tourist location.
This limited express train on the Odakyu line and has reserved seating only. A ticket on the Romancecar will get you from Shinjuku Station in Tokyo to popular holiday spots Hakone, Enoshima and Kamakura.
Winter and early spring means Japanese strawberry season. Starting from December to late April various farms throughout the country hold strawberry picking events for visitors to (at fixed price and often for a limited time-span) pick and taste as many strawberries as they like.