While travelling, take the bus or metro. If you prefer to do it by bike, rent a Vélib, the city's bike-sharing system. Expect to pay about 1.90€ for a single metro ticket, 4€ for a one-day pass or 8€ for a week-long pass. Biking is faster and you can rent a Vélib bike for around 5€ a day.
If you have more time, visit the famous gardens of Giverny, where Claude Monet lived and painted his famous water lily series. It's a 90-minute train ride from Paris. If you're travelling with kids or you're a fan of amusement parks, include a visit to Disneyland Paris. If you have less time, pick your favourite parks from the itinerary and spend quality time in those places.
Paris has 3 major airports: Charles de Gaulle (CDG), Orly (ORY), and Beauvais (BVA). Most airlines fly to CDG and ORY airports. CDG is the largest international airport in Paris, while Orly serves mainly domestic and European flights. Beauvais is mainly served by low-cost airlines.