The Niagara 31 is a Canadian sailboat that was designed by Germán Frers as a racer-cruiser and first built in 1977.

The Niagara 31 is a recreational keelboat, built predominantly of fiberglass with balsa cores in the deck and hull. It has teak wood trim. It has a masthead sloop rig, a raked stem, a raised transom, an internally mounted spade-type rudder controlled by a wheel and a fixed fin keel. It displaces 8,000 lb (3,629 kg) and carries 3,550 lb (1,610 kg) of ballast.

The boat has a draft of 5.00 ft (1.52 m) with the standard keel fitted.

The boats up to serial number 50 were factory-equipped with a Swedish Volvo diesel engine of 13 hp (10 kW) with a saildrive.

The galley is located at the starboard side, at the bottom of the companionway stairs and includes a two-burner propane stove. The fridge is located on the port side, in the aft section of the navigation station. The navigation station seat and table both stow out of the way when not in use. The head is located forward, just aft of the bow “V”-berth and is separated from the main and forward cabins by folding doors. The head has a shower with a teak grating. Additional sleeping accommodation includes two main cabin settee berths, the port one a double berth. The interior is predominantly teak with varnished pine trim.[3]

Ventilation is provided by two translucent hatches, one in the bow cabin and one in the main cabin. Of the six ports, four are fixed and two open.

The current owner has owned the boat since 1986.  It is reported that sections of the deck were ‘redone’  at Wiggers several years ago.

Sail complement includes: fully battened main, #2 Harken racing sail with furling, an older #3 dacron, and a lightly used spinnaker.