What a beautiful and touching farewell post. For someone who loved the sea like he did, I bet he would be happy to finally be reunited with it. The way you chronicled the journey showed how much you care for him, I am touched by your love and thoughtfulness :).
Before his sudden illness I had joked with him saying the Navy would never arrange something like this in this day and age. Even kidded around telling him I would source a hospital bed with wheels, find a steep hill (there are a few around here) and let the bed freewheel into the sea, it would have been apt....
Relieved and happy now his wishes have been granted, researched correct procedures prior to events was necessary. I am more settled knowing his surviving daughter and son may find some comfort, solace in honouring his final wishes.