If you want to take a step back in time, to the bronze age when most of the carvings were made. The Vitlycke museum has a reconstructed bronze age village built up with two long houses, storage huts and work sheds. The village is next to the rock carvings in the Tanum World heritage area. You can visit all year around but in summer high season there are guides to explain and let you try craftmanship from that time. The Nordic Bronze age is considered to have lasted from 1700 to 500 BC.
Fun fact. The museum building was inaugurated on the same day my oldest son was born. In a blizzard on April 4 1998 and he also worked there for three summers. Do check out his YouTube channel Hemläxa where he made a series on the Swedish farmers history where episode one has section from Vitlycke. In Swedish but you can use the auto subtitle function in a language you prefer. https://youtu.be/6ff1wRQMwM8?si=MsxFVjlZJu0_Nbdm
The man made canal, in Swedish Sotekanalen, has been dug and blasted through the rock as a relief work for unemployed stonemason workers. The idea to build a canal came up already in the late 1800 to create a safer passage over the dangerous waters in the Sotefjord. The decision was made 1913 but the work didn’t start until 1931. It was inaugurated in 1935 by the Swedish Crown Prince Gustav Adolf. This made the peninsula Ramsvikslandet to an island but it’s now connected to the mainland with a swing bridge.
The canal is 4800 meters long, 4,5 meters deep and 15 meters wide. Today it’s not used for commercial traffic but each year over 50 000 recreation boats passes this beautiful waterway.