How about the very radical concept of a bunkerless golf course?
Grant,
While I suspect few people are going to build new courses without bunkers, there are quite a few here in the UK including:
Royal Ashdown Forest
Piltdown
Berkhampstead
Charnwood Forest*
Painswick*
* The ones I've actually got round to playing!
I believe there are various reasons for this, and I'm sure others could flesh this out a bit, but some are built within large country estates where the landowners didn't let them cut bunkers into the course, others are over public common land and probably not built for similar reasons, plus with people and animals wandering about they would be a maintenance nightmare.
A couple of additional bunkerless comments. A course near to my home, Kedleston Park, is within the grounds of Kedleston Hall (a rather grand National Trust property), and recently they took out all bunkers that were in view from the Hall. Secondly, Sutton Coldfield is over public common land and has no fairway bunkers, but the greens are surrounded by fencing and so there are bunkers within the fencing.
Cheers,
James