The boat ramp named Florida 46 5900 in Mims, Florida is a public boat ramp that provides access to the Indian River Lagoon. The ramp is approximately 20 feet wide and can accommodate small to medium-sized boats. The latest information available suggests that the ramp is in good condition and is well-maintained.

The Indian River Lagoon is a diverse estuary system that spans 156 miles along Florida's east coast. It is home to a variety of fish species, including redfish, snook, and tarpon, making it a popular destination for recreational fishermen. The lagoon is also a popular spot for boating, kayaking, and paddleboarding.

According to the Florida Fish and Wildlife Conservation Commission, the following types of watercraft are permitted on the waters of the Indian River Lagoon: canoes, kayaks, sailboats, powerboats, and personal watercraft (PWCs) such as jet skis. Any vessel operating on the lagoon is required to follow all boating regulations, including those governing safety equipment, speed limits, and wake zones.

Overall, the Florida 46 5900 boat ramp in Mims, Florida provides easy access to the Indian River Lagoon, making it a popular spot for recreational boaters and fishermen alike.