Current Exchange Rate?

There used to be a guy who had the shop at the top of the canal who offered a very good exchange rate, does anyone know if he is still there?
If not where is the most reliable shop / bar to exchange?
We have £2,000 in £50 notes to take, are 50's accepted or should i take smaller notes?
We have only taken Lira before so am unsure of exchanging out there, Going Placed were giving 2.3 to the quid today....poor.
If not where is the most reliable shop / bar to exchange?
We have £2,000 in £50 notes to take, are 50's accepted or should i take smaller notes?
We have only taken Lira before so am unsure of exchanging out there, Going Placed were giving 2.3 to the quid today....poor.