The last 4 years have been difficult for many across California because of the devastating drought, but particularly tough for the Kernville rafting companies that rely of winter snow-pack to provide them with water in the Kern River.
John Stallone, owner of Mountain and River Adventures, says it's been tough to get through but "we've had some 90 degree days and it's really starting to crack the snow level, and bring it on down". Snowmelt provides the Kern River with most of it's water supply through the summer months, but typically peaks during May or early June.
Water temperatures are very cool, in the low 50s, so adventurers are encouraged to stick with experienced rafting guides to ensure safety. Proper equipment such as helmets, life jackets, and wetsuits are a top priority. Over 200 deaths have occurred in the Kern River within the last few decades, but these are typically due to irresponsible use of the river, while visitors are under the influence, and typically don't occur during rafting excursions.
You can find more information for rafting adventures on the Mountain and River Adventures website.