Did you know that years & years ago, there was a plan to connect University Ave on the Mauka side of Ala Wai & Kalaimoku Street on the  Makai side of Ala Wai (in Waikiki).  Guess what happened?  Residents on the north side objected citing noise, added traffic and crime from Waikiki.  So any structures or added activities are frowned upon, therefore good idea but not going to fly.