If you are going on a short trip 40 ft. is recommended, if you plan to stay near the coast or an inlet, a 20 ft boat will do okay, but for the really long trips 50 -60+ ft.
The size of a boat is more important in relation to the type of water and weather you will be taking it out in than whether it will be used in the ocean or freshwater. For instance, a small boat with a flat hull will be better for use in shallow water, in areas that have reefs, and in calm weather. If you will be using the boat in deep water only, something with a deeper hull will allow use in somewhat inclement weather. A larger boat will generally be more stable, and capable of carrying more goods necessary for longer trips.
Concerning use in the ocean, safety depends less on the size of the boat than the equipment carried in it. Regardless of whether or not you will be going out of sight of land, you should always carry items like a spare canister of fuel, clean drinking water, a toolkit to perform basic engine repair (i.e. spark plugs, etc.) and a method of attracting attention, for instance a flare gun designed to float and work even when wet.
If you are planning on venturing beyond sight of land, you should have additional items such as maps and a compass (and be trained in navigating), a two-way radio, a life raft, and additional provisions.
Your boat should be big enough to fit everything you need for safety comfortably.
There is no minimum size. Just common sense
A 17 year old boy recently went around the world by ocean in a boat less than 20 feet long
No,just need to name your boat.
It is not the size of the boat if you need a licence it is your age and every state has different rules so check that out. The size of the boat matters when it comes to what the boat must carry like lifevests.
There is no minimum size requirement.
Bigger the boat, bigger the cargo hold. In theory, if you had a boat and ocean big enough, you could transport an infinite mass of stuff.
Bigger the boat, bigger the cargo hold. In theory, if you had a boat and ocean big enough, you could transport an infinite mass of stuff.
40 feet
You would need a big boat with steal bottom and a good engine
A boat can travel between Australia and New Zealand, but it will need to be fully deep ocean capable.
This can vary depending on the width and weight of your boat. Check with the manufacturer or dealer to see what size or model they recomend.
any size that won't make you sick while you ride it