Start at the public access. Turtle Bay is required under Hawaiʻi law to provide public shoreline access and public parking, and it does: a signed public lot near the resort entrance. This is a legal right of access, not a favour. Park there, not in the hotel's guest parking, and walk down to Kuilima Cove.
Kuilima Cove is the sheltered, reef-protected swimming bay in front of the hotel and the only genuinely calm swimming on this stretch. Worth a swim on the way back rather than on the way out.
Round the point of the cove and you are onto Kaihalulu Beach, a long, coarse, exposed curve of sand with ironwood behind it. This is the bulk of the walk. It is rarely crowded and in winter it takes serious surf.
The last section is limestone bench and low dune. A rough path runs behind the rock; the bench itself is walkable at low tide and unwise when a swell is running.
The point is unmarked. There is no sign, no plaque and no viewing platform. You will know it because the coast turns.
Timing. Forty minutes each way at a walk, plus time at the point. Allow an hour and a half to two and a half hours. Go early: the wind builds through the day and there is no shade beyond the ironwood belt.
Alternative approach: the loop can be extended west past the point towards Kawela Bay, a shaded, banyan-backed bay that is one of the prettiest on the coast.