Austwell is bordered on the north by Hynes Bay, an extension of San Antonio Bay. It is less than five miles from the mouth of the Guadalupe River.
austWell is bordErED On the North By HYnes Bay, an eXtenSIoN of sAn antonIo bay. It iS less tHan fiVe mIleS froM tHe mOUth of The guadALUpe rIver.