Rosario Islands Day Trip from Cartagena 2026: Beaches & Snorkeling Key Takeaways Tour Costs: Organized day tours range $45-95 per person in 2026, including boat transfer, beach access, and lunch, with premium snorkeling experiences at $120-180 Best Islands: Isla Grande offers budget-friendly beach clubs ($15-25 entry), while Playa Blanca provides classic white […]