How to get to Kamakura
T. Hanami, CC0, via Wikimedia Commons
JR Yokosuka Line train
Take this train at Tokyo Station or Shinagawa. In about 1 hour and at a cost of 950 Yen, the train takes you to Kamakura (or the previous station of Kita-Kamakura)
E217, CC0, via Wikimedia Commons
JR Shonan Shinjuku Line train
You can take this train at Ikebukuro, Shinjuku or Shibuya which arrives in Kamakura in about 1 hour and costs 950 Yen. Not all trains are direct and you will probably have to change trains at Ofuna station.
にゆうていNiyute, CC BY 2.1 JP, via Wikimedia Commons
JR Tokaido Line Train
You can take this train at Tokyo Station or Shinagawa and change at Ofuna. The ticket costs 950 Yen.
Tennen-Gas, CC BY-SA 3.0, via Wikimedia Commons