By car, the best way to get to Penryn is via the A39 road. If you are coming from the nearby town of Falmouth, take the A39 northbound and follow signs to Penryn. If you are coming from further afield, join the A39 at junction 30 of the M5 and follow it all the way to Penryn.
By rail, Penryn has its own train station which is on the mainline between London and Penzance. There are regular services from nearby cities such as Exeter and Plymouth, as well as from London Paddington. If you are travelling from further afield, change at Exeter for services to Penryn.
If you are travelling from other local landmarks, such as St Austell or Truro, you can easily connect to trains or buses that go to Penryn. Alternatively, you can drive via the A390 or the A39 depending on your starting point.