Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Dunoon (46% of total searches to Argyll Forest Park). The next most popular destinations are Gourock (23%) and Helensburgh (23%). Searches for hotels in Arrochar (8%) are also popular.
KAYAK users have found double rooms in Argyll Forest Park for as cheap as $120 (Inveraray) in the last 3 days. The average price is $262.