Pau Pyrénées Airport is roughly a 3 hour drive from Haro.
If you are heading over the Pyrenees from France then Haro makes a good first stop.
The port of Santander is approximately 2 hours drive away.
The best time to visit Haro is for the major event of the year: [wiki=887069453f09ce62a008f825c9418f95]The Batalla Del Vino[/wiki]. Taking place every St Pedro’s Day, 29 June, the week’s festivities reach their climax when hundreds of people, dressed from top-to-toe in white with red scarves, hike up to a nearby hill, have a quick church service and then chuck red wine at each other until they are white no more. Walking through the streets is like a ribena berry overdose. Apparently it’s all to do with land and a dispute with a neighbouring town that dates back to the 10th century.