The northern part of the outdoor island Tvijälpi in front of Westend is wooded and the southern part of the island is dominated by cliffs. The central part of the island is lowland. There are fine coastal meadows in Tvijälpi. The nature of the island is varied and tells in its own way about the former fisherman's life in the Espoo archipelago.
Camping is not allowed and there are no services on the island.