The last of this year's Thursday night winter seminar series is on the springtime return of the osprey. Annapolis Maritime Museum, Annapolis. 7 p.m. 410-295-0104; www.amaritime.org
Battle of Hampton Roads
Commemorate the Civil War battle between the U.S.S. Monitor and the C.S.S.
Virginia with special tours, 19th-century music and games, Civil War encampments and re-enactors, presentations by local authors and more. Mariners' Museum, Newport News, Va.
10 a.m.-5 p.m. Call for specific events and times. 757-596-2222; www.battleofhamptonroads.com
This two-day basic navigation class will feature both lecture and hands-on instruction using charts and plotting tools. iNavigation Course in electronic navigation follows on March 7-8. Annapolis School of Seamanship, Annapolis. 9 a.m.-4 p.m. 410-263-8848;
This annual festival celebrates the Bay's eagles with bird-watching walks, live eagle and falcon programs, children's activities and more. Blackwater National Wildlife Refuge, Cambridge, Md. 9 a.m.-4 p.m.
The good folks at Smith Point Sea Rescue host this annual fundraising oyster roast with plenty of oysters, soup, hot dogs, beer and good company to go around.
Little River Seafood, Burgess, Va. 2-5 p.m. 804-453-5325;
Boating & Fishing Market
This nautical flea market will feature new and used boats, fishing gear, nautical artwork and more. Poquoson High School, Poquoson, Va. 8 a.m.-1 p.m. www.poquosonkiwanis.org
Bay angling pros Richie Gaines and Wayne Morgan will share fishing tricks, tips and techniques during this annual seminar, including know-how on light-tackle and fly-fishing, trolling for trophy stripers, and summer live lining. Advance registration required. Tristate Marine, Deale, Md.
9 a.m.-4 p.m. 410-867-2398; www.tristatemarine.com
Enjoy fun evening events, gallery receptions, special dinners and sales throughout downtown Cambridge, Md. Downtown Cambridge, Md. 5-9 p.m.
Brush up on your seamanship skills with lectures and talks from area boating professionals during Singles on Sailboats' (SOS) annual seminar. Participants do not have to belong to SOS, but advance registration is required. Anne Arundel Community College, Arnold, Md. 8 a.m.-4 p.m.
Safe Boating Course
Boating basics course for those looking to earn their MD Safe Boating certificate. Havre de Grace Maritime Museum, call for times. 443-504-3880; email@example.com
The Perfect Storm: Hurricane Agnes
Environmental historian Dr. Kent Mountford will explore the history of 1972's Hurricane Agnes. Chesapeake Bay Maritime Museum, St. Michaels, Md. 2 p.m. 410-745-2916; www.cbmm.org
Oyster Roast and Sock Burning Party
Celebrate the equinox with a family-friendly oyster roast and the museum's annual sock-burning party. There will be live music, oyster shucking and cooking demonstrations and plenty of great oysters to eat! Annapolis Maritime Museum, Annapolis. Noon-4 p.m. 410-295-0104; www.amaritime.org
South River on the Half Shell Auction
Help raise funds for the South River federation at this fun-filled night of food, drinks, live music and auction items. Homestead Gardens, Davidsonville, Md. 6 p.m. 410-222-3802;
Celebrate Maryland Day in St. Mary's City, the state's first settlement. There will be special ceremonies, a wreath-laying and flag ceremony, plus free admission to the St. Mary's City exhibits and special programs. St. Mary's City, Md. 10 a.m.-4 p.m., ceremony at 1 p.m. 800-762-1634;
Lightship Volunteer Day
U.S. Lighthouse Society members can volunteer to help spruce up the lightship Chesapeake. Registration required. Baltimore. 9 a.m.-5 p.m.
Rappahannock River Waterfowl Show
Browse through carvings, photos and sculptures by more than 80 artists. Preview gala Friday night (ticketed event), Saturday carving contest and children's activities. White Stone Firehouse, White Stone, Va. Sat. 10 a.m.-5 p.m.; Sun. 10 a.m.-4 p.m. 804-435-6355; www.rrws.org
Military Through the Ages
Military re-enactors will depict centuries' worth of encounters from the Middle Ages to modern times. Jamestown Settlement, Williamsburg, Va. 9 a.m.-5 p.m. 888-593-4682;
Get on the Water Seminar
Captains Chris and Alyse Caldwell will show the ropes to beginner boaters and those considering cruising. Deltaville Yachting Center, Deltaville, Va. 804-776-9898; www.dycboat.com
Mar. 20-Apr. 17
Cherry Blossom Festival
Celebrate the cherry trees as they blossom around Washington, D.C., with daily international cultural performances, sporting events, arts and crafts demonstrations and plenty more. Washington, D.C. 877-44BLOOM; www.nationalcherryblossomfestival.org
Medical Emergencies at Sea
Learn to recognize and manage medical emergencies while underway at this Chesapeake Area Professional Captains Association course. Advance registration suggested. Annapolis Elks Lodge, Edgewater, Md. 9 a.m.-4 p.m. 410-267-7651; www.capca.net
Build Your Own Annapolis Wherry
Build your own Annapolis wherry rowing skiff with the pros at Chesapeake Light Craft. Chesapeake Light Craft, Annapolis.
Spring Break: Meet the Keeper's Wife
Learn what life was like living in a lighthouse in the early 1900s. Appropriate for all ages. Calvert Marine Museum, Solomons, Md. 11 a.m.; 1:30 p.m.; 3 p.m. -4 p.m. 410-326-2042;
Catch the water taxi to St. Clements Island for a ceremony marking the anniversary of the settlers' first landing in Maryland. Clements Island-Potomac River Museum, Coltons Point, Md. 11 a.m. 301-769-2222;
Lightship Volunteer Day
Join the club! U.S. Lighthouse Society members can volunteer to work on Thomas Point Light now, other lighthouses later. Registration required. Boat leaves from Annapolis. 8 a.m.-5 p.m.