• Carlsten Fortress

Tricky treasure hunt on Marstrandsön.

Our play leader will take care of you on arrival. Fun & educational treasure hunt on Marstrand Island.

NB one person per team needs to use their own phone, preferably with a fully charged battery.

You can make team division yourself or we can do it on site when you arrive.

The teams' task is to open the coffin, which is locked with a combination lock, as quickly as possible. The contents and the honor are given to the team that opens the lid of the coffin.

They can only get the code if they go to the different stations in the area. Answer the questions in the app and get the passwords that will give you clues to the number combination.

This activity is done all year round in any weather.

We can organize a treasure hunt for up to 400 people. Should you be more than that, please contact us to discuss the arrangements.

Marstrand, welcome to the pearl of the west coast! 35 min from Centralen Göteborg, 45 min from Landvetter!

Ask for a quote


  • PRICE 10-40 PERS 350:-/PERSON
  • PRICE 40-100 PERS 300:-/PERSON
  • PRICE 100-400 PERS 275:-/PERSON

Prices are exclusive of VAT and include medals for the winning team.


  • Number of participants: 10 and up
  • Number of paying: Minimum 10 paying persons
  • Duration: about 2 hours (can be adapted)


  • Drinks stop: 75:-/pp excl.
  • Oil + construction kit: 149:- /pp excl.

Conferences & activities in Marstrand