New Brunswick, Canada, is celebrating a bicentennial a year for the next three years. The first honors the 1783 landing of 3,000 Loyalists, who left Boston after the (in their view) unsatisfactory conclusion of the American Revolution; 1984 is the bicentennial of the founding of the province of New Brunswick; while 1985 is the bicentennial of the incorporation of St. John.
One of the highlights of this year's celebration will be an event entitled Tattoo 200, billed as an extravaganza of 700 performers including pipers, drummers, singers, dancers, and marching bands. It takes place on July, 7, 8, 9, 10, and 11. Tickets are $8; send to Tattoo 200, PO Box 1985, St. John, New Brunswick E2L 4X5.
A summer course in England for adults is being sponsored by the American Institute for Foreign Study of Greenwich, Conn. The program, held July 10-29, will take place at Clare College, part of Cambridge University. Three courses provide the focus of the three weeks: ''British Art and Architecture'' surveys major styles and periods, and uses buildings and works of art in Cambridge as examples; ''The English Novel in the Early 20th Century'' takes a close look at the works of such writers as E. M. Forster, D. H. Lawrence, and Virginia Woolf; and ''Modern Britain'' examines the economic, social, and political problems Britain faces, and relates them to recent history.
Accommodations are offered at Clare College, and meals will be served in the college dining hall. The program fee of $1,099 includes tuition, room, and full board. Optional excursions to London and Stratford are planned. Brochures are available by mail from the American Institute for Foreign Study, 102 Greenwich Avenue, Greenwich, Conn.; phone (203) 869-9090.
Stretching travel dollars will be an important consideration for many Americans who go abroad this year. Some tips seasoned travelers have relied on for years have been compiled in a booklet titled ''Money Sense Overseas.'' Inflation, floating exchange rates, and the general confusion that surrounds currency exchange make it important for the traveler to use extra care in managing money overseas. Guidelines for tipping are included in the booklet. For a free copy, send a long self-addressed, stamped envelope to Travel Booklet, 3602 West Glen Branch, Peoria, Ill. 61614.
For summer travelers in Finland, expenses can be cut by purchasing top-quality hotel accommodations at economical rates through the purchase of Finncheques. A minimum of four of these coupons must be purchased to qualify for the price of $20 per person, double occupancy, per night, including breakfast and service charge. North American visitors can choose from any one of 165 hotels in 81 Finnish cities and towns.
The Finncheques can be used in three types of hotels: Category 1, first-class hotels that include full breakfast but are subject to a supplemental charge of $ 9; Category II, tourist-class hotels, which include breakfast at no additional charge; and Category III, an economy-class hotel, which also provides breakfast, plus lunch, at no further charge. Purchase of the Finncheques should be made by contacting Holiday Tours of America, 1290 Avenue of the Americas, New York, .N.Y 10104; phone (212) 489-0888.