The View is made up of 2 areas - Ocean Pier & Regatta Bay, and there are 2 side missions that count towards this achievement. They are;
1 – Finger on the Pulse
2 – Exit Strategy
*** Spoiler - click to reveal ***The first of these missions should start showing up after completing the ‘Prisoner X’ main story mission and is given to you by Plastic, while the latter will become available after the ‘Family Matters’ main mission and will be given to you by a woman named Beatrix Bloch.