- $795 – 5929 Mercer Lake Road - RV Space #6 – Mercer Lake RV Park – Quite Mobile & RV Park with 4 RV spaces and 5 mobile homes located at Mercer Lake with a private beach and dock. RV spaces are back-in only with water, 20/30/50 electric, trash and sewer. Park is set in the sheltered pines of Mercer Lake out of the coastal fog and wind yet close to the beach and Old Town Florence, Oregon. Park requires 2010 or newer class A, B and C, 5th wheels RV’s, fully self-contained. Minimum length allowed is 22 ft. (excluding the hitch). The vehicle must be well-kept, and in good condition. Rental periods are by the month only. Rates are based on a maximum of two persons, one RV and one vehicle. Pets require prior approval and additional fees