Public transportation is available by bus or taxi. Taxis are more expensive but offer more convenience. Renting a car is also an option for those who prefer to have their own transportation. Expect travel costs to range from $5 - $30 depending on distance and mode of transportation.
If you have more time, consider adding a day trip to Yelapa Beach or San Sebastian del Oeste. If you have less time, consider skipping the trip to Islas Marietas and spending more time at the local beaches instead.