I must have been 'living the dream' then Ian because I've had many a great weekend BBQ on the deck. The only problem with watching the kites from your deck is wanting to be out there.

The view across to Moreton Island always changes, it's different from day to day. That's what keeps it interesting.
Sunrises are a morning ritual almost, I have a toddler so we're up before dawn every morning. He goes out on the deck (& we follow) to see the "sunset" probably 3 or 4 mornings a week.
We put in hidden roll-out screens so that the 6 panel french doors are fully screened. For the summer 4-5 months of the year we don't close the french doors, only the screens. So the house is very indoor/outdoor - and salt on the glass hasn't really been a problem. Maybe because it's bay, not surf, there's less salt in the air?
It sounds like you're talking of a particular place or a particular experience. We're bayside so maybe that's a bit different. There's big natural areas around to the north and south of our location with Boondall wetlands, Tinchi Tamba, and the Pine river reserve.