This is a very nice campground (between Penticton and Kelowna):
http://www.env.gov.bc.ca/bcparks/exp...kpgs/okana_lk/
Located 11 km north of Summerland on Hwy 97.
Beautiful, sandy/pebbly beaches surrounded by ponderosa pine and sagebrush make this park the perfect spot for swimming and water activities. At the two large campgrounds in the park, panoramic views will add to your enjoyment.
The landscape across the lake, from beach to skyline, is part of Okanagan Mountain Provincial Park, accessible by boat or by driving back through Kelowna.