The Gap Resthouse sits at the foot of the single-lane road, at the point where the tarmac narrows and the ascent to Fraser's Hill begins. It is a colonial-era building in the old Malayan resthouse tradition — a wooden structure on a hillside, with broad verandas, high ceilings, and the slightly faded dignity of a place that once served British administrators and their families on the way up to the hill station. Today it operates as a guesthouse and is used by visitors waiting for the uphill window to open on the alternating traffic system.
The building is worth a look in its own right as an example of the resthouse typology that once dotted the peninsula's trunk roads at roughly day's-journey intervals. It sits on the edge of the forest, and the surrounding trees are excellent for birds — the forest here is lower and denser than at the summit, supporting a different set of species. Even if you are not staying, a stop at The Gap for a coffee and twenty minutes of birding from the car park is a worthwhile addition to the journey.