Personal submarines are small, privately-owned underwater vessels designed for individual use. They allow enthusiasts to explore underwater environments, observe marine life, and conduct research. These submarines can vary in size and design, accommodating one or more passengers, and are often equipped with advanced technology for navigation and safety. Many personal submarines are built with materials that ensure durability and buoyancy, such as fiberglass or titanium. Some models are even capable of reaching significant depths, providing access to areas that are typically unreachable. Companies like Triton Submarines and U-Boat Worx specialize in manufacturing these innovative vehicles for adventure seekers and researchers alike.