At first glance, Royal Springs looks more like a sinkhole. The upper layer of water is very silty and there is no boil. It has a large basin w/ average depths of 15 feet. Once you get past the top layer of silt there is good visibility to enjoy the sights of fish and old cypress trees. There is a very large cavern entrance at about 10 feet that extends to deeper depths. The remnants of an old concrete dock that was washed away due to flooding still remains.
From Branford, take US 129 north to Obrien, left on S-349 for about 11 miles. Turn left at very small sign onto a dirt road. Follow it to the spring.