Start: N 58°57.404' E 017°34.518'. Parking.
Water: Well after the ancient castle - N 58°58.755' E 017°36.477'
An interesting and varied section. The trail passes first through the Djurgården park with old hardwood forests where the queens and princesses took their morning walks, not to mention King Gustav V who had Tullgarn as his summer residence.
The trail passes Tullbotorp that until October 2009 was a field station belonging to Stockholm University. The station consists of an old school building and was used mainly for biology instruction.
The walk continues for about 5 km to the nature reserve of Näset, which is worth a visit. At the tip of Näsudden Point is a beautifully situated resting place.
From Näset, you have about 3 km to the next landmark, an impressive ancient fort, overlooking Mörkö and Pålsundet. An information board gives a nice picture of what the castle once looked like.
The walk continues through varied woodland, passing an ancient burial ground before coming down to a road that continues over Mörkö Bridge to Kasholmen.