Complex sentence: Free and open to the public, the Sculpture Trail is proximate to the main bike pathway into Jackson from the north and south, connected via an underpass, providing access to the town of Jackson and Grand Teton National Park.
Split into simpler sentences: Free and open to the public, the Sculpture Trail is proximate to the main bike pathway into Jackson from the north and south. The pathway connects to the Sculpture Trail via an underpass, providing access to the town of Jackson and Grand Teton National Park.