Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Monteverde (50% of total searches to Arenal Volcano National Park). The next most popular destination is La Fortuna (50%).
KAYAK users have found double rooms in Arenal Volcano National Park for as cheap as S$ 28 (Monteverde) in the last 3 days. The average price is S$ 244.