O Loan Lagoon is a scenic coastal lagoon located in Phu Yen. It is a perfect spot for nature lovers and birdwatchers. Take a road trip to O Loan Lagoon and explore its serene beauty. You can rent a boat and cruise along the lagoon, surrounded by lush greenery and mangrove forests. Keep an eye out for various bird species that inhabit the area. It's a peaceful and tranquil place to relax and enjoy the beauty of nature.