1. Stone Island (Isla de la Piedra) in Mazatlan, Mexico, is a popular tourist destination known for its beautiful sandy beaches and crystal-clear waters. The island is located a short boat ride away from the mainland, offering visitors a peaceful and relaxing retreat from the hustle and bustle of the city. Stone Island is also home to a small fishing village where visitors can experience the local culture and enjoy fresh seafood.

2. Stone Island is open daily, and visitors can take a water taxi or a ferry from the mainland to reach the island. The working hours of various services on the island may vary, so it is recommended to check in advance. Unfortunately, there is no specific phone number available for Stone Island.

3. There is no entrance fee to visit Stone Island, and visitors can simply pay for transportation to and from the island. Water taxis and ferries operate regularly from various points in Mazatlan, making it easy to reach Stone Island. It is recommended to check the schedules and prices of transportation services before planning your visit.