Second Chances: Releasing Rehabilitated Sea Turtles 

Build a new part of the National Aquarium! It can have an antarctic penguinarium and a stadium for orcas! And even an exhibit connected to the stadium where after the orcas are in their exhibit to the public separated by a large gate, the gate to the other exhibit for Sea Lions can open and they can show off the Sea Lions being fed and doing tricks just like the orcas!