Sin Hoi Sai Seafood Restaurant is a Singapore seafood restaurant at 55 Tiong Bahru Rd, #01-59, in Tiong Bahru. It has a 4.0 rating from 985 Google reviews. It is described as serving Singaporean seafood dishes and shellfish in roomy, laid-back surroundings. Reviewers mention chilli crab most, along with pepper crab and kang kong, and one says it is open until 3am and has been in business for over 45 years. Another notes a quiet weeknight and a set meal menu, though one describes the service as a little pushy.
Crab is the centrepiece of a Singapore seafood dinner, and it is usually priced by weight, so ask the price per kilo before it is cooked. Chilli crab is eaten with fried or steamed buns to mop up the sauce, while pepper crab is drier and spicier. Order a vegetable such as kang kong and a rice or noodle dish alongside, and share across the table. Gloves, bibs and plenty of napkins help. Weekday evenings tend to be calmer than weekends.
For a late crab dinner in Tiong Bahru, Sin Hoi Sai is a long-running local option.