This is an excellent place to visit and has been featured in many films like James Bond´s - Die Another Day or Lara Croft´s Tomb Raider.
On the east side of the river is a little restaurant where you can grab a slice of cake and a hot drink or something like that. There are toilets and you can also book one of the boat rides into the lagoon.
As will all Iceland's natural treasures the entrance fee is free.
Ring Road - 1 Jokulsarlon Vestur-Skaftafellssysla Iceland