Blue Lagoon is a Thai restaurant located in London, United Kingdom, specifically in the Haymarket area. With a rating of 2.4 stars based on 7 reviews on Yelp, it seems like opinions are mixed. The restaurant offers Thai cuisine and has amenities such as taking reservations, accepting debit cards, and being kid-friendly. If you're in the mood for some Thai food and find yourself near Leicester Square, you might want to check out Blue Lagoon and see if it hits the spot for you!