Jack is 5 and definately in pirate mode, I bought this map to go with a treasure chest purchased elsewhere. After secretly burying the chest in the snow and marking the spot with couple of sticks in X shape, we 'found' the map (quite by chance...) and it allowed his excitement of believing there could be buried treasure somewhere to build. We searched the garden together and his delight in using the map and actually finding the X marks the spot was justification enough for buying the map, to then dig up a treasure chest (filled with all things pirate and choc coins) just blew him away. 2 weeks later and he's still talking about it!
Ok so we'll never be able to repeat that first high, but as an accompanyment to future pirate games this map is worth every penny of its miniscule price, durable as well so should survive repeated use.