beaches? depends on what kind you like... go north beyond Malibu if you want deserted, undeveloped beaches; the "beach cities" of Manhattan/Hermosa/Redondo Beach are the best "So Cal" type surf/beach towns in LA County, or go down to The OC for Huntington, Newport, Laguna Beach. Santa Monica & Venice are fun in their own right. do not expect anything like the Oregon coast, anywhere well, i guess Venice is like a sketchy, big-city Seaside!
Rosemead is east of L.A. in the San Gabriel Valley, which has world-class Asian food; also the Huntington Museum & Gardens (San Marino); nearby Pasadena is nice, too. Not much car-stuff on that side, unless you wanna go to California Motor Speedway (NASCAR) in Fontana.
ask if you wanna know more!