Whilst in Los Angeles we had a wonderful 24 hours in the beach town of Santa Monica. If there's no traffic then it's only about 25 minutes from Hollywood to Santa Monica (there's always traffic in LA though). This is why we booked a hotel & spent a little bit longer there than just a day trip.
The Warner Brothers Studio Tour & a visit to Griffith Park in Los Angeles were both high on my bucket list when I last visited Los Angeles. It was such a delight to finally be able to visit them both in the same day!