Crescent City is a small town in northwest California. It has a population of under 5,000 people as of 2007. Crescent City is near both the Oregon border and the Pacific Ocean. While scuba diving opportunities are limited in the city itself, several dive sites are available in the vicinity.
Mill Beach is located about 20 miles north of Crescent City. A white sandy beach provides several access points into the water for divers. A variety of marine life, including grouper and bass, are common here. This scuba location typically has light currents and visibility of up to 9 meters (30 feet), making it appropriate for divers of all experience levels.
Twins Rock is about 30 miles from Crescent City. This location has a sandy bottom and a variety of rock formations and boulders. Underwater life such as kelp, crabs and rock fish is common. Access is available from the shore. Due to medium currents, visibility of only 3 meters (10 feet) and potentially dangerous rock formations, the Twins Rock site is recommended for advanced divers only.
Illinois River is about 40 miles northeast of Crescent City. This river flows into the larger Rogue River and features gravel and rock formations. Access to this dive location is available from the shore. The Illinois River is open to scuba divers of all experience levels. A light current and visibility of 12 meters (39 feet) is common.
Early Hole is a scuba diving site in the Smith River about 10 miles from Crescent City. This location has a bottom of sand and gravel. Visibility is good in the spring, but can decrease in late summer due to algae growth. High currents at this location make Early Hole a site for experienced divers.