Take advantage of the rain to explore the historic sites of Tenerife. Visit the UNESCO World Heritage Site of San Cristóbal de La Laguna, a charming town with well-preserved colonial architecture. Wander through its narrow streets, admire the colorful facades, and visit the beautiful churches and historic buildings. Another option is to explore the historic district of La Orotava, known for its traditional Canarian architecture and picturesque plazas. These historic sites offer a glimpse into the island's past and provide a fascinating way to spend a rainy afternoon.