According to timeout.com, Watson's Bay is one of Sydney's top spots for picnics, long lunches, park sprawling, sunbathing (Lady Jane Beach is a legal nudist spot, if you're so inclined) and trail walking. For me, Watson's bay is one of the first beaches I visited upon arriving in Australia. And believe me, it was the time i said to myself how much I fell inlove for this country.
The stunning walk through gap park and the views of the Pacific Ocean is truly dramatic which reminded me of of the Philippines which is also known for the great and pristine beaches and breathtaking coastlines.
Lastly, a tip from me would be to wear comfortable clothes; active wear during summer and your favourite wind breaker during winter. Never forget your water to get yourself hydrated and most importantly, don't forget to enjoy!