Every first Sunday of the month, locals hike through this 10-km hike. It's free and you can find many people. It takes about 3½ hours at good pace and it's of moderate difficulty. At the end of the hike, you can take the bus back to Ensenada for about US$1.
Regional History Museum
Small museum in a former prison. Exhibits show the history of Baja California from the time of ancient indigenous civilizations dwelling in caves through the era of Colonial Mexico with the missionaries and early settlers through today. Occasional temporary exhibits on special topics.
Caracol Science Museum
Modern science museum with spectacular ocean views from its myriad floor-to-ceiling windows. Permanent galleries focus on the heavens, earth, and the sea. The museum has a large planetarium. The museum has special seasonal exhibits as well as special events like nature walks, skywatching, etc.
Cathedral
Roman Catholic Cathedral in Spanish Colonial style. Dress modestly (no short shorts, must cover your shoulders). Candles and Mass by donation (ofrenda).
What better way to spend a summer evening in Mexico than enjoying "America's favorite pastime"...baseball! The Marineros are Ensenada's hometown team, playing in the semi-pro developmental league, Liga del Norte. The stadium is a fun, family-friendly place with great concessions at reasonable prices.