Which Mexican coast has peak whale shark aggregations during the summer months (June through July)?
Answer
The Caribbean side near Isla Holbox and Isla Mujeres
Mexico presents a clear coast-to-coast seasonality shift that allows experienced travelers to track the optimal viewing conditions throughout the year. While the La Paz/Baja region on the Pacific side experiences its peak aggregations later in the year, specifically during the winter months spanning December through April, the Caribbean side, which includes Isla Holbox and Isla Mujeres, reaches its best viewing window during the summer, specifically June through July, correlating with peak summer feeding times.

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