Before you start for Nusa Penida/Lembongan, here are some things you should know:
1. When you book your hotel, do ask for a round trip transfer from the harbour to the hotel and back. You may need to pay a little extra something, but trust me, it will ease your worries a lot.
2. There are several boat operators that take you to and from Nusa Penida and Lembongan. Rocky Fast Boat Service is the best one for Nusa Lembongan. For Penida, Maruti Group and Skypenida Fast Boat services are both great.
3. Be careful of the bag you carry. It is best if you can store your bigger luggage elsewhere and just carry a backpack for 3 days. You can store it in the hotel you’ll stay for the next leg, after you come back from Nusa Lembongan/Penida. The boat actually will carry your bigger luggage, but dragging it across the harbour by yourself is a pain. My hardshell case bag actually broke near the wheels and I had to exchange it after coming back. But, if you have a cloth suitcase, you can brave the risk, if not, backpack is the best solution.
4. Nusa Penida, unlike Nusa Lembongan, is a bigger island and it is not a 10-minute van transfer from the harbour. It normally will take you around 40-45 minutes to your hotel, and most hotels do not have a beachfront view, although you will get an ocean view. Hotels are minimum 40 hours away from Broken Beach or Kelingking Beach, and the road is terrible. It is advised not to get yourself a scooter or motorbike in Nusa Penida since the road is rocky, long and hilly. Because of all this, I personally suggest you stay at Nusa Lembongan, hire a scooter and take a day trip to Nusa Penida for sightseeing and for a snorkelling trip.
5. On your transfer day, remember that you will definitely get wet till your waist up. There is no jetty, so the boat is harboured on the shore. You need to walk up to the boat and climb it. I am a short person and I got my bum wet. I felt really icky since it was my period, day one. So, avoid wearing a sanitary pad and use a tampon (if it’s that time of the month).