If you plan on seeing the most popular attractions in Niagara Falls over a 2-day period, the Adventure Pass -- or its off-season equivalent, the Magic Pass -- sold by the Niagara Parks Commission can become a worthwhile investment.
The Adventure Pass includes as well as admission to 1) Maid of the Mist; 2) Journey Behind the Falls; 3) White River Walk and 4) Niagara's Fury, as well as 5) two days of free transportation on the WEGO buses. Even by foregoing one of the five items (Niagara's Fury), we ended up spending less than if we had paid for each individually. The Adventure Pass also comes with discount coupons for other Niagara Parks attractions, such as the Butterfly Conservatory, the Whirlpool Aero Car, Old Fort Erie and the Laura Secord Homestead.
The Adventure Pass is available during the summer season, which is roughly from mid-April to mid-October. Because several attractions are closed in winter, it is replaced during the off-season by the Magic Pass, which includes 1) Journey Behind the Falls, 2) Butterfly Conservatory and 3) Niagara's Fury, as well as 4) two days of free transportation on the WEGO buses
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This isn't really an activity, more of a way to save some money. If you have a AAA near you stop in and purchase The Great Gorge Adventure Pass. This is a pass that lets you enjoy some of the attractions at one flat rate instead of paying for eveything seperatly. Included is The Maid of the Mist, White Water Walk, Journey Behind the Falls and The Butterfly Conservatory. You also get free people mover passes for 2 days and a discount at The Spanish Areo Whirlpool Car. You get discounts at some of the food stands, like a free french fry or a beverage.