I liked Tarzan. The first book is definitely the best, and the series takes a noticeable drop in quality after the second, but by then you're hooked. It is not very action-heavy, but there are some cool fight scenes. Check it out, it's pretty short.

I'd have a crack at ready the first of each of his series. Mars was my favourite, but Land That Time Forget is ace too.

I read the first one and I liked it, my only experience with Tarzan was the Disney movie.
The book takes off the kid gloves and explains a lot of things like shaving, reading, speech, hunting, etc.