As a rough guide, brand new homes and land in the outer suburbs of the capital cities start at around $250k, while you can pick up homes in isolated rural areas for as little as $100k (or even less).

If the OP is going to cater to the tourist crowd they will need to be located near the tourists which takes out anything in a isolated rural area, and as most of the major tourist areas are coastal they are not going to get anything close to $250K.