Camping Around Kelowna (Carr's Landing)?

[Enigma]

We've just learned that our August vacation rental at Carr's Landing has been snafued due to a bylaw implemented in 2011 that forbids rentals shorter than one month. We were going to be renting it for a week. My inlaws have another cabin for six weeks, and their plans are unaffected by the bylaw.

We would still like to join them out there, but we're going to need different accommodations that are reasonably close to Carr's Landing.

Does anyone have any recommendations for good campsites in the area? We've got a 25' fully enclosed travel trailer with shower and toilet . . . it looks like some places require this (the Holiday Park Resort on Duck Lake, for one). I found the website for Ellison Provincial Park, and I think that might do.

Any feedback or suggestions would be great. This vacation is so important to hubby.