It is recommended to rent a car to get around Cornwall efficiently, especially if you have limited time. The cost of renting a car can vary depending on the company and type of car, but can be as low as £20 for one day. Travel time between each location can range from 30 minutes to an hour.
If you have more time, consider adding a visit to the Eden Project, the Lost Gardens of Heligan, or the Tintagel Castle. If you have less time, you can skip one of the locations and spend more time at the others. Don't forget to pack comfortable shoes and clothing, as well as sunscreen and a hat, as the weather can change rapidly.