despite facing unimaginable miseries in both first and second voyage ,why did gulliver choose to undertake the third veyoge

Gulliver is now an explorer at heart. He can't stand the monotony of life in England. After being at home for only ten days, Gulliver is visited by a ship captain who invites him on a voyage departing in two months. Gulliver convinces his wife that this is a good opportunity and sets off, again working as the surgeon.

Gulliver wasn't satisfied.He has a spirit of adventure and also a taste for travelling so to say.