Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Ria Mar, which is in the state New Jersey (NJ), city South River. Our hotel can be found at 25 Whitehead Ave, South River, NJ. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Ria Mar/25 Whitehead Ave - South River - New Jersey (NJ) ← View details 25 Whitehead Ave, South River, NJ, South River, New Jersey (NJ) 723-257-1100