Sunnyside Family Retreat Camp is a seasonal RV campground situated on Upper Rideau Lake near Westport, Ontario, within Ontario's renowned Rideau waterway system.

Spanning over 147 acres, the park offers 157 seasonal trailer lots ranging from premium waterfront positions to parkland settings, with 30-amp electrical and water hook-ups available.

It is open from the first weekend in May through Canadian Thanksgiving in October, with gated access and year-round on-site management. Note that Sunnyside is a seasonal-only park and does not accommodate short-term camping.

The property includes approximately three-quarters of a kilometre of private waterfront, two sandy beach areas, a boat launch, and docking facilities.

Recreational amenities include beach volleyball, pickleball, basketball, horseshoe pits, nature trails, a fitness centre, two children's play areas, a covered pavilion with free Wi-Fi, and a convenience store.

Fishing, swimming, and kayaking on the Upper Rideau are popular pursuits for residents.