Basically, a boating marina is a place where boats can be kept, sheltered from the environment and weather.
They often offer services catering to the boater, such as dockside fuel and one or more shops offering boating gear and food.
The marina is where you can find a ramp to get your boat into the water as well. At larger marinas, there is often permanent dock space and winter storage available.
These slips are especially handy if you are a resident or frequent visitor. You can navigate to this site if you're looking for slip rentals.
Many marinas are independently owned and financed so that they charge to get access to midsize, and typically have some kind of subscription fee to utilize another marina services.
Becoming a member has its own benefits, such as blown off slide rentals, access to courses and onsite mechanics, in addition to a ton of different services which may or might not be accessible, based upon your marina.
Virtually all marinas offer you some type of boat leasing for people who don't own or did not want to move a ship. This may be a wonderful way to get a sense for different ships prior to making a buying decision also.
Most bodies of water are going to have some type of marina. The bigger lakes and these will frequently have several marinas in a variety of areas around the lake.
Occasionally these marinas have been in competition with every other that can lower costs marginally. But because they supply a service absolutely necessary for boaters, you should not anticipate any decent deals on gasoline and ramp fees.