You can drive up to this campground and it’s a primitive site (vault toilets, minimal water). Amazing views of the lake, Collegiate Peaks, Continental Divide, the valley, wildlife. It’s a great base camp for some serious day hikes and 14ers. Thankfully you can only use human-powered boats on the lake, so bring a kayak if you have one. You need to take a dirt road to get to the campground but it’s accessible to sedans unless there’s been a lot of heavy rain/snowmelt. There are no reservations so get there early in the summer. All the sites seemed to be equally beautiful, ours had phenomenal views even though though it seemed a little close to our neighbors. Buena Vista is not pronounced the way you expect :)