Planning a scuba diving vacation in the Caribbean involves selecting the right destination like Curaçao and Bonaire, considering the best time to visit for ideal diving conditions, choosing dive-friendly accommodations, booking diving packages in advance, checking equipment needs, refreshing dive skills for safety, exploring dive sites, respecting marine life, capturing underwater memories, and embracing eco-dive and cultural tourism. Consider eco-friendly practices and immerse in local cultures for a fulfilling experience.