For the excursions from Bovec you can use the local bus and especialy in July and August there are good and often connections to Trenta valley, Vršič and Kranjska gora. Few times a day is also direct bus to Ljubljana and back. Bovec is 100km away from the airports Ljubljana and Klagenfurt, 200km away from the airport Venice. From Most na Soči, 40km away from Bovec you can take a car train to Bohinj or Bled. That makes your traveling there much shorter and interesting, as you can admire the Baška grapa valley by sitting in your car on the train.