Greater Philadelphia Boat Show
Mar. 11-13      
Greater Philadelphia Expo Center, Philadelphia, PA

National Capital Boat Show
Mar. 11-13     
Dulles Expo and Convention Center, Chantilly, VA
804-337-6479; www.agievents.com

Bay Bridge Boat Show
Apr. 15-17      
Bay Bridge Marina, Kent Island, Stevensville, MD
410-268-8828; www.usboat.com

Annapolis Spring Sailboat Show and Cruisers University
Apr. 21-24      
Loews Hotel, Annapolis, MD
410-268-8828; www.usboat.com


Winter Seminar  

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


Basic Navigation    

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;


Eagle Festival  

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.
410-901-6124; www.fws.gov/refuge/Blackwater


Oyster Roast  

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


Fishing Seminar  

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


Second Saturday  

Enjoy fun evening events, gallery receptions, special dinners and sales throughout downtown Cambridge, Md. Downtown Cambridge, Md. 5-9 p.m.
443-477-0843; www.cambridgemainstreet.com


Spring Training  

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; safeboating2207@gmail.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;  www.southriverfederation.net


Maryland Day  

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; www.historyisfun.org


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.
410-267-0317; www.clcboats.com


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; 



Maryland Day  

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;


Taste of Solomons    

Sample culinary creations from the restaurants in Solomons, Md., during this annual culinary festival. Solomons, Md. 11 a.m.-4 p.m.  www.solomonsmaryland.com

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.