Biking, kayaking, snorkeling and birdwatching are just some of the guided tours offered with Adventours in both Ixtapa and Zihuatanejo. Families can check out the plants, birds and other wildlife along the paved bike path that runs all through Ixtapa. Coral reefs and fish fill the ocean waters for kayakers or snorkelers to find. Most of the tours take several hours or about a half-day, depending which one you choose.