If you are planning on travelling distance to attractions, we would recommend that you contact the venues directly in advance to avoid disappointment.
If you, or any of your party have a new persistant cough, or develop a fever of 38C, we would instead advise you to use the NHS's dedicated website for professional advice.
Built in 1883, 'Alaska' is the oldest working passenger steamer on the Thames. She has twice acted as the Royal Barge, carrying the Queen in 2009 and 2012. 'Alaska' also took part in the 2012 Diamond Jubilee flotilla.