The calculated distance (air line) between Garachico and San Juan de la Rambla is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to San Juan de la Rambla is certainly longer, as only the direct route (as the crow flies) between Garachico and San Juan de la Rambla has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles