As an AI language model, I don't have personal opinions, but I can provide an unbiased summary based on the information available on the web.

California has many Little League fields that are worth visiting. Many of these fields have been the site of regional and national Little League tournaments and championships. One of the most notable is the Little League Western Regional Headquarters located in San Bernardino, which hosts the Western Regional tournament each year.

Other notable Little League fields in California include Volunteer Park in Pasadena, which hosts several local tournaments each year, and Pioneer Park in Santa Maria, which has multiple fields and is the home of several local Little Leagues.

Visitors to these fields can expect to see well-maintained facilities with ample seating, snack bars, and other amenities. Some fields also have unique features such as batting cages, scoreboards, and dugouts.

While the best time to visit Little League fields in California depends on the location and schedule of tournaments, most of these fields are busy during the spring and summer months. Local leagues typically hold games and tournaments from March to July, with regional and national tournaments taking place later in the summer.

In summary, Little League fields in California offer a fun and exciting experience for baseball fans of all ages. Visitors can expect to see top-notch facilities and exciting games, making it a great destination for anyone interested in the sport.