Mission Bay beach in Auckland has lost a lot of sand over the years, leaving little beach left. To fix this, a plan for beach replenishment has been proposed. This plan involves bringing in 30,000 cubic meters of sand from offshore to rebuild the beach. The researchers also considered how this project would affect coastal processes, marine life, construction, cultural aspects, and the beach's appearance. The goal is to restore Mission Bay beach to a stable and enjoyable state for visitors.