Answer:
Henry M Flagler turned St. Augustine into a busier place by building big attractive hotels and turning it into a tourism destination.
Step-by-step explanation:
Henry M. Flager visited St. Augustine for the first time when he went there for his honeymoon, found that the hotel he and his wife used as the stay was inadequate. Therefore he believed it was a nice business opportunity because the place was beautiful. Thus, he returned several times to evaluate the different parts of St. Augustine, and then with the help of locals and foreigners, he made it a tourist hotspot turning into a busier place.