You can catch a tricycle anytime during daytime. Make sure to ask the price first and your destination. The tricycle driver can bring you to other beaches in Santiago for a small amount of money. Most of the drivers own their own tricycles so you can bargain for the price!
When you ride the jeepney and it is overloaded, make sure to hang on pretty tight! Or, better yet, ride at the top of the jeepney! You have better view!