How to get there
The only way to get to Lidö is by boat. Drive to Räfsnäs Brygga, you can either park on the right side (cheapest option) of the road and use the app Easypark to pay for your parking or park on the left side and pay by Swish.
The ferries leave from the dock 300 meters from the carpark. For the ferry ride you can either pay with your credit card or SL card onboard. Click on the link to see the departure times:
Time table Räfsnäs - Lidö
You can also travel by bus to Räfsnäs. The bus station is called Räfsnäs Brygga. It takes approx. 2h from central Stockholm.