Introduction to Canghai Tower: Canghai Tower is a three-story hexagonal wooden tower with a pointed roof. It is about 20 meters high and is known as the first building in the South China Sea. Climb up the Canghai Tower and admire Yalong Bay, "the best bay in the world". The sky is high above and the clouds are clear, and the waves are vast below. The sea and sky are the same color as far as the eye can see, making people sincerely marvel at the charm of "the best sea view in the world".