The train is a great mode of transportation to Laguna Beach from both Los Angeles and San Diego. Amtrak's Pacific Surfliner train travels along the coast from San Luis Obispo down to San Diego. Visit their website to view schedules and purchase tickets. There are Amtrak stations located in San Juan Capistrano and Irvine. If you are taking the OCTA (Orange County Transportation Authority), the San Juan Capistrano location is more convenient.