Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Toronto (92% of total searches to Lake Ontario). The next most popular destinations are Mississauga (4%) and Hamilton (2%). Searches for hotels in Niagara-on-the-Lake (1%) are also popular.
KAYAK users have found double rooms in Lake Ontario for as cheap as £20 (Oshawa) in the last 3 days. The average price is £169.
In the last 72 hours, users have found Lake Ontario hotels for tonight for as low as £64 (Burlington). Users have also found 3-star hotels from £99 (Burlington) and 4-star+ hotels from £105 (Pickering).