1. Plaza Sotomayor is a prominent square located in the heart of Valparaíso, Chile. It is known for its beautiful architecture and historical significance. The square is surrounded by several notable buildings, including the former headquarters of the Chilean Navy, the Armada de Chile building. The central monument in the square is dedicated to Arturo Prat, a national hero of Chile.

2. Plaza Sotomayor is an open public square, so there are no specific working hours. The best time to visit is during the day when you can fully appreciate the beauty of the surroundings. For more information, you can contact the Valparaíso Tourist Information Center at +56 32 223 7034.

3. There is no ticket required to visit Plaza Sotomayor as it is a public square. To get there, you can take a local bus, a taxi, or walk if you are staying in the city center of Valparaíso. The square is easily accessible and is a popular stop for tourists exploring the city.