The avenc del Ramon de la Fonda opens on the right hydrographic slope of the headwaters of the same torrent where the font de l'Enric de la Fonda is found and, further down, the basses del Barceló and the font del Carner.

To reach it we can start from the track that leaves to the right of the Castellar-Sant Llorenç Savall B-124 road, shortly before kilometre 16. The track passes beside the balma de l'Aiguader and crosses the Ripoll. Within a few metres the blue markers of the new route along the Ripoll river join us. We will count five gullies and their respective ridge spurs. We will find the blue cave marker painted on a pine. This will be the moment to leave by our left and take the crest of the ridge. Shortly before reaching the foot of the crag, we will skirt it on our right, crossing a boulder field. The avenc del Ramon de la Fonda is about ten metres into the wood, approximately perpendicular to the summit of the small hill with elevation 505.

Approximate coordinates.