This small museum located not far away from Tallinn, you can take minibus #260 for city center and be in museun in 20 min. Note that this bus do no accept Tallinn, thus you need to pay 2 euro.
Museum ticket is 3,5 euro for adult, but youbwill be proposed to take one more ticket for another museum located nearby and pay 5 euro for two museums.
Museum territory is small, abou 7-8 buildings, but povide you basic information about fishermen life in this area and beautiful view on Tallinn harbor. You can try to make knots and swing on a swing. There are also couple of sheeps, ships and boats.
On Saturday they say they have a market there.
I would recommend to combine visit of this museum with Pirita beach and/or TV tower - all of these attractions located not far away.
This museum is good addition to visit of Eesti Vabaohumuuseum as expositions of these two open museums are different and complement each other