Better explanation about where exactly to start the app so it syncs with the voice and map properly. Make the dots on the app reusable so that you can go back and listen to a description again. Add descriptive narration for the nature hikes when you are out of the vehicle. Add some intro narrative material for each trip that can explains what each trip entails or a condensed video as we found on YOUTUBE of the roads you will be driving, i.e. the one lane roads, dirt roads, and bridges and the etiquette of driving those one lane roads.

Wonderful app for those driving alone or with others. I enjoyed the turn by turn instruction, even those mentioning rest areas, bathroom availability and food options. I really enjoyed the soft musical island musical background. Great app and would buy for other locations, giving historical info was perfect as it gave me insight to the culture.

The audio tour is excellent.. following the instructions is important to keep up with time.. one thing to decide is whether of not you want to stay up 10k ft after 8.30 pm to watch the milky way because it becomes pitch dark and people with night time driving challenges should reconsider