This trail is a must do. We camped at the unnamed lake below parika lake and then near the junction to Bowen lake. Would rate as strenuous, and there is a lot of exposure on the ridge lines past parika lake. We had wind gusts of probably 60 mph or so. We took our rain flies off our packs, because they were acting like parachutes and sometimes the wind was so strong you had to stop before you could move again. Definitely worth it though. Vertical drop offs on the ridge are more gradual than straight down, so not bad IMHO, and I’m not a heights fan! The views at the peak of 12300 feet or so are absolutely breathtaking.