How can we say that Gulliver's Travels is a story of adventure?

One could say that Gulliver's Travels is a story of adventure because Gulliver does endure many perilous journeys by sea and visit a number of faraway and exotic places.  He is in danger several times -- either due to a shipwreck or various hostile hosts or animals that are substantially larger than he is, and so on -- and he must survive and escape these dangers, creating a story that seems filled with adventure.  For example, Gulliver is shipwrecked in Lilliput and awakens to find himself a prisoner; the Lilliputians consider allowing him to starve to death before eventually branding him a traitor and desiring to kill him.  He is also constantly in danger in Brobdingnag; he could easily be trampled, and even small animals, like dogs, become enormous and dangerous to him.  Adventures like these define Gulliver's travels abroad.