2024-08-15 Mondegreen Festival Mondegreen Festival August 15 - August 18 Mondegreen Festival Tickets for Phish’s 4-day Mondegreen Festival are on sale now! From August 15-18, at The Woodlands in Delaware’s historic capital, Dover, you can enjoy Phish’s rock music while staying at a campsite, RV setup or nearby hotel. Take part in Phish’s annual tradition while exploring Delaware’s scenic countryside. $450