Greater Philadelphia Boat Show
Mar. 7-9
Greater Philadelphia Expo Center,
Philadelphia, PA. 877-748-7469;

National Capital Boat Show
Mar. 7-9
Dulles Expo and Convention Center,
Chantilly, Va. 804-425-6556;

Bay Bridge Boat Show
Apr. 11-13
Bay Bridge Marina, Kent Island,
Stevensville, MD. 410-268-8828;

In-Water Boat Show
Apr. 18-20
Whitehouse Cove Marina,
Poquoson, VA. 757-508-2602;

Annapolis Spring Sailboat Show
and Cruisers University

Apr. 25-27
Annapolis, Md. 410-268-8828;

Feb. 24-Mar. 24
Boating Safety Course
This nine-session safety course will meet weekly through March 24, and will cover boating nomenclature, identification, trailering, rules and regulations, legal responsibilities, emergency situations and more. Advance registration suggested. County Services Plaza, Prince Frederick, Md. 7-9 p.m. 410-535-2035; www.drumpoint.org.

Oyster Roast
Smith Point Sea Rescue hosts this annual fundraising oyster roast that comes 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; www.smithpointsearescue.com

Basic Navigation & Piloting Course
This two-day basic navigation class will feature both lecture and hands-on instruction using charts, plotting tools, government publications and workbook exercises. The Level II Navigation Course in electronic navigation follows on March 3-4 and focuses on the use of GPS, radar, Racons and chartplotters. Annapolis School of Seamanship, Annapolis. 9 a.m.-4 p.m. 410-263-8848; www.annapolisschoolofseamanship.com

Sea Chantey Night: Myron Peterson
Ship's Company Chanteymen's Myron Peterson will perform at an evening sing-along including ballads, salty tales and boisterous sailing songs. Havre de Grace Maritime Museum, Havre de Grace, Md. 7-9 p.m. 410-939-4800; www.hdgmaritimemuseum.org

6, 13, 20
Winter Seminar Series
This year's Thursday night winter seminar series at the Annapolis Maritime Museum features Larry Denton, speaking about William Henry Seward's efforts to prevent the Civil War (Mar. 6), raptors of the Chesapeake Bay (Mar. 13), and the ghost fleet of Mallows Bay (Mar. 20). Annapolis Maritime Museum, Annapolis. Thursdays, 7 p.m. 410-295-0104; www.amaritime.org

Battle of Hampton Roads
Commemorate the historic 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

Marine Communications: Regulations and Operations
This Chesapeake Area Professional Captains Association course will cover Global Maritime Distress and Safety System (GMDSS), Radio Safety Equipment (EPIRB and SART, USCG Rescue 21 System and Digital Selective Calling (DSC) System), and Radiotelephone Station & Bridge-to-Bridge Regulations and Operations. Advance registration suggested. Annapolis Elks Lodge, Edgewater, Md. 9 a.m.-3 p.m. 410-267-7651; www.capca.net.

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

Polar Plunge
(Rescheduled) Organized by the Maryland State Police to raise money for Maryland Special Olympics, this annual event on the shores of Sandy Point State Park attracts many thousands of people to take an icy late-January plunge in the name of charity. In addition to several rounds of plunging, there will be plenty of food and entertainment. Sandy Point State Park, Annapolis. 8 a.m.-4 p.m. The main plunges are scheduled for 1 and 3 p.m. 410-789-6677; www.plungemd.com.

Fishing Seminar
Well known Bay fishermen Richie Gaines and Wayne Morgan will discuss fishing topics, including 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

Fishing and Boating Flea Market
The Dorchester County chapter of MSSA will host the biggest marine flea market on the Eastern Shore as vendors get together to show off new and used boating and fishing gear, homemade lures and more. American Legion Post #91 (at the foot of the Route 50 bridge) Cambridge, Md. 8 a.m. 410-228-0251; www.mssadorchester.com

Marine Diesel Basics
Learn the basics of diesel maintenance and troubleshooting during this hands-on course. The Level II Diesel Engine course follows on Mar. 10-11. Annapolis School of Seamanship, Annapolis. 9 a.m.-4 p.m.
410-263-8848; www.annapolisschoolofseamanship.com

Windjammers Lecture: Gary Jobson
President of U.S. Sailing and all-around sailing celebrity Gary Jobson will speak about current sailing topics, including the America's Cup, speed sailing, college sailing and more. Severn School, Severna Park, Md. 8 p.m. www.windjammers-chesapeake.com

Emergency Management at Sea
This hands-on course held by the Chesapeake Area Professional Captains Association will cover emergency repairs under way, flooding control, loss of propulsion or steering, man overboard, groundings, fire, dismasting, and others, and provide planning tips for avoiding hazardous situations. Advance registration suggested. Annapolis Elks Lodge, Edgewater, Md. 9 a.m.-3 p.m. 410-267-7651; www.capca.net.

Eagle Festival
Join in this annual festival celebrating 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/blackwater

Spring Training
Brush up on your seamanship skills with lectures and talks from area boating professionals at this annual this day of informative presentations organized by Singles on Sailboats (SOS). 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. www.singlesonsailboats.org

Rappahannock River Waterfowl Show
More than 80 artists, carvers, photographers and sculptors will exhibit their wildlife artwork at this 35th annual show. A special preview gala will take place Friday night (ticketed event), and there will be a carving contest on Saturday, as well as children's activities. White Stone Firehouse, White Stone, Va. Sat. 10 a.m.-6 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 military encounters from the Middle Ages to modern times. Learn about military tactics and weaponry, and enjoy a children's parade. Jamestown Settlement, Williamsburg, Va. 9 a.m.-5 p.m. 888-593-4682; www.historyisfun.org

Mar. 20-Apr. 13
Cherry Blossom Festival
This annual city-wide event celebrates the gift of the 3,000 cherry trees from the city of Tokyo to the people of Washington, D.C. There will be daily international cultural performances, sporting events, arts and crafts demonstrations and plenty more. [see "Cherries Jubilee," page 20] Washington, D.C. 877-44BLOOM; www.national cherryblossomfestival.org

Medical Emergencies at Sea: Beyond First Aid
Learn to recognize and manage medical emergencies while under way at this Chesapeake Area Professional Captains Association course. Advance registration suggested. Annapolis Elks Lodge, Edgewater, Md. 9 a.m.-3 p.m. 410-267-7651; www.capca.net.

Oyster Roast and Sock Burning Party
Spring is here! Celebrate the spring 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, family activities and plenty of great oysters to eat! Annapolis Maritime Museum, Annapolis. Noon-4 p.m. 410-295-0104; www.amaritime.org

Maryland Day
Head to Maryland's first city to celebrate Maryland Day with 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; www.stmaryscity.org

Electrical Systems Basics
Students will receive hands-on and lecture instruction in basic electrical theory, troubleshooting and repair skills, and system design and maintenance. A level II class will be held Mar. 17-18. Annapolis School of Seamanship, Annapolis. 9 a.m.-4 p.m. 410-263-8848; www.annapolisschoolofseamanship.com

Build Your Own Annapolis Wherry
Join the pros at Chesapeake Light Craft in a week-long course,to build your own Annapolis wherry rowing skiff kit boat. Chesapeake Light Craft, Annapolis. 410-267-0317; www.clcboats.com

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; www.co.saint-marys.md.us

Basic Marine Electricity
This Chesapeake Area Professional Captains Association course will cover the basics of electricity in the marine environment, including installing and maintaining electrical systems, AC and DC current, grounding and more. Advance registration suggested Annapolis Elks Lodge, Edgewater, Md. 9 a.m.-5 p.m. 410-267-7651; www.capca.net.

Rotary Oyster Roast
Enjoy oysters, live music and more during this annual Cambridge Rotary Club Oyster Roast. Long Wharf Park, Cambridge, Md. Noon-4 p.m. Tickets available through the Dorchester Chamber of Commerce. 410.228.3575; www.cambridgemainstreet.com.

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

Fishing Fair
Browse more than 80 indoor and outdoor displays of new and used fishing gear at this annual sale, presented by the Southern Maryland chapter of the Maryland Saltwater Sportfishermen's Association. There will also be food, drinks and raffle prizes. Solomons Firehouse, Solomons, Md. 8 a.m.-3 p.m. 301-373-3071; www.mssasmc.com

Half-Hull Model Class
Build your own half-hull model of the Pride of Baltimore II during this two-day model-building workshop with the Cheapeake Bay Maritime Museum's model guild builders. Chesapeake Bay Maritime Museum, St. Michaels, Md. 9 a.m.-5 p.m. 410-745-2916; www.cbmm.org