Lay Berth - There are idle vessels too on the port and for such vessels the dedicated berth provided is known as lay berth. There is no loading or unloading activity happening there. While a low lay berth is used when only loading and unloading activities are to be done for a short time.
Product Berth - This kind of berth is a berth where products like oil and gas are handled and the loading takes place with the help of loading arms that have pipe lines are known as product berths.
There are marina berths available for boats and yachts as well so that you can park your yachts, ferries, boats and vessels safely. Some are available for free while for some, rent has to paid as they are owned privately. If you are thinking that free berths are better than paid berths, you need to know that private berths that are paid provide you insurance and safety of your yacht is the responsibility of the berth owners so you are not at all worried about the yacht once it is parked.
Free Moorings - If you are willing to go with free yacht berths or moorings you need to keep a few points in mind. The quality of the anchor and the chain is one important thing which needs to be checked and if diving is needed to verify the quality then do so.