If you look on Google Maps or Earth for Hosmer Lake, you'll see a rather weird-looking body of water, as compared to the other nearby Cascade Lakes. Hosmer is irregular, strung out with a snaking channel between two larger sections and very, very green. The sort of pale green I associate with swimming pools that haven't been maintained, or stagnant ponds.
In other words, not entirely appealing.
On the ground, or water, the reality is quite different. Hosmer is beautiful with clear water. And it's perfect for kayaking, with views of Mt Bachelor and South Sister, plenty of shoreline places to explore and enough acreage to accommodate the crowds.
Access Hosmer via the south Elk Lake Loop road (labeled Mud Lake Rd on Google Maps) off the Cascade Lakes Scenic Byway. Follow the road to the boat ramp area. There's a campground on the left just as you get to there. The boat ramp area doubles as a parking lot - there are no dedicated parking spots, just a lot of dirt and gravel. People seem to leave the left side for loading and unloading kayaks and canoes, while parking on the right side. It can get tight.
Once on the lake, you can poke around the south area but the more interesting spots lie along and beyond the channel to the north. This is a fishing lake, so mind the fishing lines.
For more info, read Christopher C's review. In fact, for any hiking, kayaking, waterfall spots in the Bend area, check out Chris's reviews and lists. A former Yelp Bend CM, Chris has documented Bend outdoors quite well. read more