Registrants to the Keck Science Meeting may make use of Caltech's negotiated rates with local hotels.
Caltech is located in Pasadena, California. There are numerous lodging options, from budget to upscale.
Caltech's home page maintains a useful set of directions and maps for reaching campus by car or public transit.
Parking is available in the garage behind the Cahill Center for Astronomy & Astrophysics. The address of the garage is 1248 California Ave., Pasadena, CA 91125. A daily parking permit costs $6 and is available at kiosks in the garage. The Caltech parking website has more information.
Breakfast and lunch will be provided on both days of the meeting. For dinners, Pasadena has a lively restaurant scene. Lake Ave. is walking distance from campus and features many nice restaurants. Old Town Pasadena is 2 miles from the Cahill building and has world-class eateries. See Yelp for recommendations.