We found these when touring Hawaii several years ago. Was excited to find them for Canyonlands and Arches National Parks. Great directions, informative background information, some corny humor and quiet driving music. Will definitely be adding to our collection on future trips!
I've used Shaka guides a few times now: Road to Hana, Canyonlands NP, and Arches NP. They were all an excellent inexpensive way to diy a tour.
Single traveler and I felt completely in control with excellent directions and fantastic descriptions of sites to visit. Highly recommend!!!