Oh, sorry, I see you are flying into Liberia and staying 5 days in an all-inclusive Westin! So you won't have to worry about food or food prices people mentioned, although we found prices very reasonable .
With only 5 days, I would not attempt driving, even though you say you are used to driving narrow roads... Note the other posters' experiences, seems they were lost most of the time ( as well as being on difficult roads).
That may be the time that turtles come in masses (arriiba) to lay their eggs ...
You can check, but your hotel would definitely have information and probably tours. You would be able to use your short time there more wisely then.
I think the volcano and cloud forest are a long ways away, probably an overnight tour... So that might be out. But there is still lots to see along the coast, the animals especially are fabulous. I woke up every morning at 5:30 to a beautiful chorus of birds and other animals .(. The monkeys "howling" too, ) which lasted almost 45 minutes and was a real highlight.
Each village is different too, and we took the local bus to the nearest city to experience that.
I researched a lot before we went ( the rental car insurance problem question was enough to decide that early on). The locals were the most helpful though for details .
