Thai Island in downtown San Diego occupies a six-table storefront on Seventh Avenue where a husband-and-wife team has cooked made-to-order Thai cuisine for more than 25 years. The curry lineup — panang, green, yellow, massaman — runs on a 1-to-10 spice scale with Thai-sourced chili oils, a heat-forward approach that contrasts with the Japanese-Peruvian fusion plating at Zama San Diego in the nearby Gaslamp Quarter. Pad thai, drunken noodles, tom kha gai, and basil chicken anchor a menu built on recipes the owners brought from Thailand and have kept consistent across two and a half decades of downtown service. Sushi rolls share the compact menu alongside the Thai standards, and ingredients are sourced both from local California suppliers and directly from Thailand. The four-table indoor dining room and two-table sidewalk patio keep the format intimate on a block shared with fellow independent restaurants like Cafe 222 in the same downtown corridor. The kitchen's highest-heat curries — spice level ten and above on request — serve as a test of tolerance for regulars who have built multi-year lunch routines around the panang and green curry.