Route:
721B Noarlunga Centre Interchange to Old Reynella Interchange
Termintes at Old Reynella Interchange. Service operates Monday - Friday.
- Choose your direction:
- to Old Reynella
721B to Old Reynella
No scheduled service for the 721B to Old Reynella at this time.
- Zone G Noarlunga Centre Interchange - East side 
- Zone B Colonnades Interchange 
- Stop 64A Alexander Kelly Dr - North side 
- Stop 64 Beach Rd - North side 
- Stop 63 Beach Rd - North side 
- Stop 62 Beach Rd - North side 
- Stop 61 Beach Rd - North side 
- Stop 60 Beach Rd - North side 
- Stop 59 Beach Rd - North side 
- Stop 58 Main South Rd - West side 
- Stop 57 Main South Rd - West side 
- Stop 56 Main South Rd - West side 
- Stop 55 Main South Rd - West side 
- Stop 54 Main South Rd - West side 
- Stop 53 Main South Rd - West side 
- Stop 52 Main South Rd - West side 
- Stop 51 Main South Rd - West side 
- Stop 50 Main South Rd - North West side 
- Stop 49 Main South Rd - North West side 
- Stop 48 Main South Rd - North West side 
- Stop 47 Main South Rd - North West side 
- Stop 46 Main South Rd - North West side 
- Stop 45A Grant Rd - North side 
- Zone B Old Reynella Interchange