LA Custom Islands Directions & Map 2640 S. Myrtle Ave #13 Monrovia, CA 91016 loading map - please wait...Map could not be loaded - please enable Javascript!→ more information LA Custom Islands2640 S. Myrtle Ave #13 Monrovia, CA 91016 (Directions) 2640 S. Myrtle Ave #13 Monrovia, CA 91016 34.148100, -117.999000 LA Custom Islands2640 S. Myrtle Ave #13 Monrovia, CA 91016 (Directions) Located @ 1430 Arrow Highway Irwindale, CA 91706 Telephone @ (626) 628-7405 Website @ www.lagrillislands.com