Kind of fruit tree:
Durian
Why this fruit tree is unexpected:
Ultra-tropical, hardly anyone tries to grow it
Grow Notes:
There are folks who struggle to grow durian in even more southern tropical climate; common belief has been that it’s the climate that’s the issue, but it seems more an issue of soil
If anyone can find this grower, check their growing practices
(This is an approximate location, apparently the tree is on Pine Island somewhere)