Celebrate turning 30 in sunny San Diego with unforgettable experiences that suit every vibe. From a beachside brunch and surf lessons to a luxury sunset cruise or a wine tasting tour through nearby vineyards, thereβs no shortage of ways to make the big 3-0 feel special. Whether itβs a laid-back spa day, an adrenaline-filled adventure like skydiving, or a fun night out in the Gaslamp Quarter, San Diego birthday ideas are all about soaking up the good vibes and making lasting memories.