Traveling to Israel is easy. Tel Aviv is connected to all major cities around the world, many of which via a direct flight. As an example, London, Amsterdam, Paris, Frankfurt, Geneva, Brussels, Rome, Milan, and Madrid are all between 4-6 hours away. Getting here from New York and Hong Kong takes 11 hours.
Also note that Easyjet is currently operating flights from 7 cities to Tel Aviv (London, Berlin, Paris, Manchester, Geneva, Basel, and Rome), and is planning to add more.
Once in Israel, Sababike will deal with your local transportation needs. Alternatively, if you are here under your own steam, rent a car and head out on your adventure! There are also convenient public transport links between all the major cities, either via train or bus. In Tel Aviv, you will also find a city-operated rent-a-bike scheme, where renting a bike costs 5 NIS per hour + a 17 NIS daily access fee.