Introduction to Aquatics: Take the Plunge With Sara Kooperman, JD If you are new to aquatics, DIVE IN...the water's fine! To access this content, you must purchase Introduction to Aquatics: Take the Plunge, OnDemand Monthly Subscription Payment Plan, OnDemand Annual Subscription, OnDemand Monthly Subscription, OnDemand 6-Month Subscription or OnDemand 2 Year Subscription or log in if you are a member.