You can reach the island either by boat or by plane
ferry
There are ferry connections from Athens to Paros several times a day across the two ports of Piraeus and Rafina.
Also, the island of Paros is very suitable to explore several islands, as it has many connections, even to Crete, Santorini, Mykonos ...
plane
You can take charter flights to Mykonos in summer (May to October) (then take a speedboat to Paros, about 50 minutes) or Santorini (then speedboat or ferry, about 2-3 hours) arriving to Paros.
Likewise, the airline Olympic Air and AegeanAir offers a scheduled flight from Athens to Paros and back.
However, you should book early as these flights are booked up very quickly, especially in the high season.
For individual travel plans, please contact me!