Yes, we walked up to the Mausoleum from the cave. It's only a short 10 minute walk up the hill. You get a great view of the countryside from the top. If you want to make a day of it, West Wycombe Park is just down the road (the Dashwood Manorhouse) and a good visit too. A very eccentric family with some great history. The guide was fantastic, and told us a host of stories. A notable one was when Francis Dashwood impersonated Charles XII while in Russia and attempted to seduce Tsarina Anne, and was later expelled from the Papal states. One of many we heard that day. Highly recommend it.