Everything's included at the top all-inclusive couples-only Caribbean resorts.

EAGLE MOUNTAIN, Utah — A vacation to an all-inclusive Mexican beach resort is the dream for most, but something seemed a bit off for an Eagle Mountain couple who recently ventured to Cabo San Lucas.

All-inclusive resorts are especially appealing for couples because they make it so easy to combine accommodations, meals, and activities in one rate—not to mention many of them offer spas for some ...