Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Toronto (94% of total searches to Lake Ontario). The next most popular destinations are Mississauga (3%) and St. Catharines (3%). Searches for hotels in Rochester (1%) are also popular.
KAYAK users have found double rooms in Lake Ontario for as cheap as $108 (St. Catharines) in the last 3 days. The average price is $420.
In the last 72 hours, users have found Lake Ontario hotels for tonight for as low as $113 (Rochester). Users have also found 3-star hotels from $158 (Toronto) and 4-star+ hotels from $259 (Mississauga).