Duplicating makes a new draft from an existing product. It saves building a similar product from scratch, and it is the only way to give a product a different type, pricing or way of working its dates, because those cannot change once a product is made.
Under Products, open the product you want to copy from On sale or any other list.
In the page map under On this page, press Duplicate, then press the Duplicate button in that section.
Keep the same type under Type of the copy for a plain duplicate, or choose another one, such as Short / dinner cruise.
Comes with the copy shows what is copied, Starts again what the new type needs you to set, and Stays with this product what never moves: bookings, reviews and the page address.
Press Make the copy. The new draft opens; check it and press Publish when it is ready.
Tip. Save or cancel any waiting changes on the page first: the copy is made from what is saved.
Tip. To move to a new type, publish the copy and then take the original off sale. Its bookings stay with it.