Pricing and details about the Bioluminescence Bay Kayak Tour excursion. Paddle across the mangrove channels of " Las Cabezas de San Juan " nature. From San Juan Area Hotels Offering kayak tours at sunset that lead to the fascinating lagoon at Las Cabezas de San Kayak tour in a Bioluminescent Bay. “We did both the kayak and this tour to see the bioluminescent bay. . The Reserva Natural Las Cabezas de San Juan provides guided tours of (among other.