Grenada's nutmeg and cocoa plantations earned its 'Spice Isle' name, the Underwater Sculpture Park outside St. George's was the world's first, and Grand Anse remains the southern Caribbean's most consistent beach.
Dry trade-wind season, the Spicemas Carnival in mid-August aside, the December through Easter window keeps the dive sites and beach scene at peak.
Sea calmest for Underwater Sculpture Park snorkelling, rates dropping after Easter, and Spicemas Carnival builds toward Monday Mas in August.
Hurricane season with Grenada's southern position keeping risk lower than the eastern Caribbean. Carriacou Maroon Festival in late April.
Hurricane risk fading, dry season returning, and the high-season buildup begins as cocoa estates run their year-end harvest tours.