The Parque Nacional Huatulco protects 119 sq km of land, sea and shoreline west of Santa Cruz Huatulco, including some of Huatulco's most important coral reefs, which in the past have suffered some damage from fishing and touristic activities. Few visitors enter the national park except on guided or escorted trips, and the fee for entry to the land zone is normally taken care of by your tour operator: otherwise you can pay it from 09:00 to noon, Monday to Saturday, at the national park office.
The fee for the marine zone is collected at Santa Cruz harbor, along with another fee to enter the harbor itself. Use of non-biodegradable suntan lotions or sunscreen is prohibited within the national park.
