During your trip, you will need to consider renting a car for ease of access to all the locations. Ride-sharing options like Uber or Lyft are also available but can add up in cost, and public transportation isn't a feasible option since some locations are outside the city. Renting a car for the 5 days averages around $400 for the whole trip.
If you have extra time, consider visiting the iconic Universal Studios in Los Angeles or the beautiful Huntington Library, Art Collection, and Botanical Gardens. Alternatively, if you are short on time consider skipping the Golf Day on Day 2 or, the Beach Day on Day 4.
The nearest airport is the Los Angeles International Airport (LAX), which is about 26 miles from the city center of Alhambra, California. Better options could be the Bob Hope Airport in Burbank, which is about 19 miles from Alhambra, and The Ontario International Airport in Ontario, about 28 miles from Alhambra. These regional airports offer reasonably priced flights and are closer compared to LAX.