Chad Nikkel travels internationally three times a year, and he always makes sure to stay away from the common tourist itinerary and immerse himself in the local culture. “I’m anti-touristy,” says the Aquaman Pools founder. “It’s OK to see the palace or whatever, but I like the local feel.” His recent trip was to the seaside town of Cascais, Portugal, famed for its historical Cidadela de Cascais fort and picturesque marina. Nazaré As the owner...