If they're on the artsy side, they'll like the Café Sarajevo. They have very good musicians too.
http://english.montrealplus.ca/porta...ofileID=511296
For exotic food, anywhere along St-Denis, Ste-Cath, or some of the sidestreets around the strip bar area.
Good sushi is Maiko Sushi on Bernard. Isakawa, on Du Park, near corner Dr. Penfield (a tad north of Sherbrooke).
for cultural stuff in english, have a look at
www.hour.ca ,
www.voir.ca in french or pick up the free papers in most convenience stores.
If they're into airplane, the best airport in a 100 miles radius for small aviation is St-Lazare's. Lotsa homebuild airplanes.
Fishing season opens this coming week-end, I think. They can go anywhere in the Ottawa river or Lake of Two Mountains (i..e along HWY 40, just at the exiit from Mtl, to catch river cat.
The view from the mountain belvedere (not the one on the road, the one you have to walk to is definitely worth the time to get there.
Old Montreal is a nice place, if there weren't sooo many tourist traps.
If they like to tango, Montreal is one international hot spot. The best reference page on the topic is
http://www.totango.net/mtl.html
If they're into BDSM, there is the Fetish Café, corner St-Cath and DeLorimier (just east of Jacques Cartier bridge).
If they're into Gothic scene, fridays at the Saphir on St-Laurent, are the way to go.
For a rather extensive list of clubs and activities, visit
www.altmtl.ca there is a LOT of stuff on that site. The site is badly designed, very convoluted, but there's a lot of stuff there.
There is also a visit of the sub-terranean city, which is huge, I think the biggest in north america (thanks our january weather for that)
You'll find a bunch of maps at
http://www.stcum.qc.ca/English/info/a-plans.htm
including a map of the underground tunnels
Then, one place worth visiting is westmount. Impressive houses and neighborhoods. Just drive anywhere between Dr. Penfield (parallel to Sherbroke, but up the mountainside) and Queen Mary. Start at the back of McGill U, go a tad west (say, try Guy streetn which changes into Cote des Neiges and try making a right turn somewhere. Buy a map BEFOREHAND ! he he It's a very anglo community.
Another place which is quite stunning is the Habitat 67 condos on Notre Dame Island. You take Pont de la Concorde to get there. Go park in the back. The condos look like a set of boxes piled upon each others. But ti is a very clever design. From anywhere you are, you cannot see other appartments, thus you have the impression taht you are alone. The view from the little terraces are one of the best you can get of Montreal. This is where they shoot most postcards from.