Bus tours of Los Angeles range from hop-on hop-off double-decker bus tours with recorded narration, to guided small-group mini-van tours and everything in between. Many of the bus tours allow time for walking around at various stops. Usually the time off the bus is un-guided. Many of these companies also offer packages from Los Angeles to Las Vegas or San Diego. They are listed in no particular order.
Starline Tours dominate the LA guided bus tour market. They have a huge variety of tours from which to choose. The quality of Starline tours is variable depending on the guide. Some are outstanding; others are mediocre. Considering that they are the biggest tour company in town, they have a reputation for being somewhat unorganized, and not terribly service oriented. Most tours depart from Hollywood, but there are also some departing from Santa Monica. Tours with hotel pick up and drop off can be several hours longer than advertised.
Downtown, Hollywood or Universal City hotel.
Downtown LA instead of Hollywood. They also offer private limousine tours.
Beverly Hills in an open-air trolley. Sights include the elegant shops of Rodeo Drive, stately neighborhoods, celebrity homes and famous and historic landmarks.
Santa Monica, Venice and Marina del Rey hotels. All tours are guided, not prerecorded.
Long Beach to Venice Beach, Santa Monica, Beverly Hills and of course, Hollywood. They have full-day and half-day tours in 9-14 passenger mini-buses departing from Long Beach hotels, the cruise ship terminal or LAX area. Passengers have time to get out and explore at Venice Beach, the Sunset Strip, Hollywood Blvd and the Hollywood Sign.