Money transfer for a long stay

I am planning to stay in Seoul for a year. I won%26#39;t be working, so money will have to come from my british bank account.

What are the options in terms of moving money around?

- exchange it beforehand from a high street bank?

- bring cash with me and exchange it at a korean bank

- wire it to a korean bank account. If so, are there any low-commission services such as tranzfers for GBP or AUD -%26gt; KRW, or am I stuck with being ripped off?

Thanks

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