Among your first stops should be Tonsberg Tourist Centre. Here, you'll be able to orient yourself and pick up some great ideas before you begin exploring.
This Tonsberg tourist information center is an ideal spot to start your day of sightseeing. There's loads to see and do nearby, like Tønsberg Castle, Tonsberg Cathedral, and Slottsfjellsmuseet. Wander around at your leisure at Tonsberg Tourist Centre before heading to these other fine sights.