San Marcos is located on Highway 78 between Oceanside and Escondido. It is roughly 35 miles north of San Diego via I-5 or I-15 to Highway 78. The nearest major airport is San Diego. The nearest minor airport is Palomar Airport in Carlsbad.
Breeze is the local bus system, with the Sprinter Oceanside-Escondido light rail line stopping in San Marcos as well. You can also dial 511 v in the San Diego area for regional traffic, transit, and commute info.
Boehm Gallery @ Palomar College, 1140 West Mission Rd. (http://www.palomar.edu/art/dirctionsgallery.htm), ☎ (760) 744-1150 X 2304, . The Boehm Gallery of Palomar College was dedicated as a not-for-profit art space in 1966. The Gallery is named after a former Palomar College Dean of Humanities, Dwight Boehm. The gallery has steadily gained in stature locally, nationally and internationally. It has been featured in such prestigious publications as Art Forum, Artweek, Art in America & Ceramics Monthly.(33.149090,-117.185245)edit
Discovery Creek Trail. Excellent views for hikers and cyclists. Cyclists will have to put in some work, though, to reach the views, as there is an 0.8-mile paved road uphill -- but most agree that it’s worth the climb. The trail totals 1.1 miles with an equestrian path running just south of it. The trail begins at La Noche Drive, runs along Discovery Creek and ends at Lakeview Park.
Churchills Pub and Grille, 887 West San Marcos Blvd, 760-471-8773. English Pub, hosts dart leagues. Very involved in the craft beer community and boasts a selection of over 200 beers. Known for its Fish n Chips and curries. Patio with firepits. Pool table, dart boards, golf game, Big Buckhunter. Kid Friendly. Was a much warmer and more colorful venue when it used to be the expat haven called Camelot. The food was better as well.
Penny Lane Pub & Grill, 1001 W. San Marcos Blvd. Even if you don't love the Beatles, the pints are tasty, the staff is friendly, and the British-style dinner specials are a bargain (try the Chicken Pie!).