That much money should put youu in the luxury class. The best idea would be to put the money in your local bank account and take an ATM card and pull out what you need each day. That way you do not have a lot of cash lying around for someone to take. You will also get the best rate of exchange each day and that will save you whatever your bank charges. Sounds like a fun vacation. San Sebasstian is nice but expensive as far as food goes. Loved the bay and the beaches. Make sure you go up the fanicular so you get a good view of the whole bay and town of San Sebastian.