Located near a cave along the hiking trail behind Landhuis Daniel. The cave is more of a hole in the ground, but it is possible to enter it if you're careful and have steady footing.
Access is from Landhuis Daniel, or an alternative access nearby from the main road if Daniel is not open. Access from the windmill farm is also possible and makes for a shorter hike, but may require some bushwhacking.
The hiking trail is partly rough terrain and not to be underestimated. Good shoes are a must. You will have to either descend or ascend a rocky slope. Bring plenty of drinking water (best more than you think you need) and sun protection as there is little shade along the way.
Trail maps and guides indicate the trail making a loop, but as of this writing the return leg of the trail is partially broken and so it's best not to attempt making a loop.