If you're staying for a longer period of time, you can check out the West Hollywood Halloween Carnival It's an annual public event that takes place on Santa Monica Boulevard between North Doheny Drive and La Cienega Boulevard. Local bars brew up great drink specials while live bands and DJs blast high-energy vibes.
Paul and I used to live in this beach town and love it. If you have time, we would recommend going into Santa Monica and walking around Montana Avenue, the 3rd Street Promenade and enjoying the food and drinks at the local restaurants and bars in the area. The Santa Monica Pier is a large double-jointed pier at the foot of Colorado Avenue in Santa Monica, California, United States. It contains a small amusement park, concession stands, and areas for views and fishing
The best places to see the Hollywood Sign are Griffith Observatory and Hollywood & Highland
Doesn't need an introduction. Disneyland, ya know.