Possible Clues:

• Plank at a pirate-themed pool party, perhaps
• Committee members parachuting from an airplane?
• Springy device for jumping into a pool
• Cannonball launcher?
• Place to launch a cannonball
• Springy Summer Olympics thing
• Springy item above a pool
• *Cannonball origination spot
• Take the plunge here to appreciate swallowing French wine with food