5 Hidden Gems San Diego

Why it made the list: The only sea cave in California you can reach by land, through a hand-dug tunnel of 145 steps that descends from a little curio shop right down to the water's edge inside the cliff. It was carved out over a century ago, and emerging to the glowing cave mouth over the ocean is genuinely unforgettable.

Why it made the list: A 375-foot wooden footbridge that bounces gently as you cross it, strung 70 feet above a leafy canyon in a quiet residential neighbourhood. Built in 1912, it's completely free, hidden on a side street, and one of the most charming five minutes in the city.

Why it made the list: A private front yard that a local couple has spent years shaping into a living sculpture garden, shrubs trimmed into animals, people and abstract swirls, dozens of them, right on the sidewalk. It's free, it's delightful, and it's entirely the work of two residents who just kept going.

Why it made the list: One of the most revered pieces of modern architecture in the world, Louis Kahn's travertine courtyard with a single channel of water running dead straight toward the Pacific horizon. It's a working research institute, but the courtyard is open to visitors, it's free, and standing in it is a genuine experience.

Why it made the list: An 1857 brick house in Old Town billed as one of the most haunted houses in America, courtroom, theatre and family home in its day, and now a small, atmospheric museum that leans fully into its ghost stories. Whether or not you buy the haunting, it's a genuinely well-preserved piece of the city's frontier past.