The Yacht Robbery blip sits off the west coast. You need Thermite from Lester at a payphone.

There is a cooldown between yacht hits, so pick your timing.

On board, follow the prompts:

• Plant thermite on the engines (watch the planting bar).
• Loot stashes before time runs out (loot and stash bars help you track progress).

When the engines catch fire, leave the yacht. The escape timer matters. Get clear with your loot and deal with whatever wanted stars you picked up.

Sell stolen goods at the Fence later, or list them on the Black Market.