Le Morne is easily visible from all around the area, especially the fancy hotels at the beach. To enter the core zone however you have to drive to the only entrance. It’s marked on the main road as “access to mountain”. It’s from either side a 1.5km bumpy unpaved road. The door is open from 7am to 4pm. Entrance is free. The first part is a rather easy uphill stroll. The second part is protected by an iron fence and door that can only be opened by official guides. There is no official close to the fence and climbing it seems to be a very popular option for both locals and tourists.
The second part far more challenging. I would only recommend it to those who are not afraid of basic climbing. Don’t even try when it rains. The views make up for the effort and it’s a good feeling to reach the iron cross. I was not able to find anything connected to the escaped slaves living there, except maybe the trail itself, but I guess that’s hard if “not leaving traces” is part of the nomination. Me as a Swiss mountain goat did the whole trip in 2.5 hours. But I assume 4 hours is more realistic. Bring water and get up as early as possible. Especially on a Sunday it’s a popular destination. All in all a really enjoyable and picturesque WHS.