Quiet, private, and not near people, roads or buildings. (Cambridge Dictionary)
Screened or hidden from view: Sequestered. (Merriam – Webster)
Living in seclusion: Solitary. (Merriam – Webster)
(of a place) not seen or visited by many people; sheltered and private. (Oxford Dictionaries)
A secluded place is quiet and private. (Collins Dictionary)
Secluded. Your Dictionary
What is the difference between a secluded beach and a deserted beach?