During April’s Earth Month, Florida marine life enthusiasts can learn about sea creatures and ocean environments without even getting wet.

Free classes, presented by the state’s Coral Reef Conservation Program (CRCF) at the Biscayne Bay Environmental Center, promise exciting and educational seminars that cover a range of oceanic concerns from aquatic health to coral and fish identification.

With the exception of PADI Project Awareness, participants can only register for one session per topic due to limited seating. You can however be put on a waiting list.

The CRCF coordinates research, monitoring and response to coral reef stress and injury. The program also develops management plans and promotes community partnerships and civilian participation to protect the reefs through the Southeast Florida Coral Reef Initiative (SEFCRI).

Established in 2003, CRCF targets the coral reef habitats of more than 6,000 species off Palm Beach, Broward, Miami-Dade and Martin counties along with all 300 nautical miles of the Florida Reef Tract from the Dry Tortugas to Stuart.

SEFCRI is led by four focus teams each dedicated to awareness and education; fishing, diving and other uses; land-based sources of pollution and water quality; and maritime industry and coastal construction impacts. The reef classes fulfill part of the initiative’s community education and outreach responsibility.

No experience or expertise is required, but reservations are necessary to land a seat at the Biscayne Bay Environmental Center, 1277 NE 79th Street Causeway, just east of Pelican Harbor Drive, Miami.

Here’s the menu:

PADI Project Aware: Thursday, April 2, 6-9 p.m. Anyone curious about ocean and freshwater environments and the plight of the world’s aquatic eco-systems can attend. Attendees will learn why all humans should care and how they can take responsibility for water, which makes up 70 percent of Earth’s surface.

No previous training with the Professional Association of Diving Instructors (PADI) is required.

Stony Coral Identification: Tuesday, April 7, noon to 3 p.m., or Thursday, April 9, 6-9 p.m. You will be introduced to 30 species of the hard skeleton corals that form large reefs off the shores of Miami-Dade, Broward, Palm Beach and Martin counties. Quizzes but no grades, will cap the class with a little educational fun. Everyone gets a free photo CD for future reference.

SEAFAN BleachWatch: Tuesday, April 14 noon to 2 p.m., or Thursday, April 16, 6-8 p.m. Get up close to the hard sea facts with the Southeast Florida Action Network (SEAFAN), an organization dedicated to reporting and responding to sea surface temperature warming, which affects coral biology and causes reef bleaching and deterioration.

Recreational, commercial and scientific divers are encouraged to become part of the network. Participants will get a condensed how-to interview for evaluation of coral conditions, observation recording and reports submission. Everyone gets a BleachWatch kit, which includes program overview, fact sheet, data forms, dive whistle, coral identification list and bleaching example cards. Marine Invertebrate Identification:

Tuesday, April 21, noon to 3 p.m., or Thursday, April 23, 6-9 p.m. Become acquainted with common sea sponges such as octocorals, crustaceans, echinoderms and mollusks on a first name basis.

Every diver and snorkeler — or anyone who opens his eyes while swimming in the vast ocean — is bound to come face to face with these interesting and mostly very colorful creatures such as star fish, lobsters and anemones. Take home a free CD of sea invertebrates — after the class quiz.

REEF Fish Identification: Tuesday, April 28, noon to 3 p.m. or Thursday, April 30, 6-9 p.m. Join members of the Reef Environmental Education Foundation (REEF) for a beginner course in the basics of fish watching.

Learn to identify 50 commonly sighted species in the tropical western Atlantic. All educational materials are free. Divers and snorkelers can earn a chance to volunteer for the REEF Survey Project by securing a score of 80 percent or higher on an after class quiz and by participating in two fish surveys.

Survey data are collected in a fun way using the Roving Diver Technique. Later, the information is used for public education and by resource agencies and researchers.To reserve a spot, send name and requested date to Coral@dep.state.fl.us.