Book an Appointment with Discovery Wharf at Maine Center for Coastal Fisheries: Welcome to Discovery Wharf at Maine Center for Coastal Fisheries. Our summer hours include: Tuesday, Thursday, Friday, and Saturday from 10:00am to 4:00pm (closed for lunch from 12:00pm - 1:00pm). Discovery Wharf is free, but a suggested donation of $10 per family is greatly appreciated. See you on the wharf! **Please read our terms and conditions before your visit.**