My idea Englishman is to have good sized rental property there in a beautiful area, beach nearby not too far out of the way and cater for maybe 4-5 retired people and treat 'em like kings with friendly respectful staff and all mod cons and fully inclusive of quality meals etc, a regular home from home.........
My home Island of Jersey would charge a small fortune for that kind of service, i am sure there is a market for it and already my GF is thinking ahead as a care-giver and i will finance her training in this.