Bahamas is good in terms of yields. But so is everything else that stays on the hurricane track 😉
Maybe the inner islands of the Bahamas are worth a consideration. This is the rare part of the world where the first and second line of properties from the coast, with best views to the sea, should be worth less than the third and fourth line of properties. The market does not always agree with me.
Montenegro lacks a strong buy argument at the moment, unless short-term vacation rentals are what he wants to do. A nearby country, Moldova, on the other hand, is driven by employer demand which I like. Boring housing, supported by the middle class and government employees who︀ commute to schools, hospitals, police stations... - that's what I like as an investment. Sexy︁ beach-front housing does not make a good investment outside holiday seasons.
If beach-front properties are︂ actively managed by top-notch professionals, they will outperform the rest. However, the key challenge is︃ that the property should be rented out on a per-night basis for 3 months of︄ the year, whereas the low season of 9 months should be covered by a stable︅ tenant. Easier said than done!