* His most significant northern reach was to the east coast of Florida, specifically the area around present-day St. Augustine.
* This would place his northernmost point of exploration around 30° North latitude.
It's important to note that:
* Ponce de León's primary focus was on finding the mythical Fountain of Youth. He didn't set out to map the coast in detail.
* His voyages were relatively short, lasting only a few weeks or months.
* The precise location of his landings is still debated by historians.
Therefore, while we can estimate that 30° North was his approximate northernmost point, the exact latitude is uncertain.