We enjoyed a guided hike up the tiny mountain, a cable car down, a wonderful/horrific rollercoaster, crazy golf and paddle in the pool.
The following day we visited the neighbouring town of Collingwood for a trail walk and stopped briefly at Wasaga Beach on Lake Huron.
On our final day en route to the airport we had an afternoon at the historic site Saint Marie amongst the Hurons - a location where for 10 years early Europeans set up a mission to convert the locals and in the process killing off large parts of the population with many of the diseases they brought with them.
Overall a very successful trip with lots of great sights and activities.