Please note that traveling to the UK may require an electronic travel authorisation (ETA) or visa. Please visit the UK government website to find out whether you require an ETA or a visa, and apply for the ETA if relevant. (Note: many other websites offer ETAs at higher rates - it is highly recommended to use the link above).
If you are not eligible for an ETA but require a visa, please apply for the visa in a timely manner as visa evaluation procedures may take long. To request an official visa invitation letter from the hosting entity (Department of Applied Mathematics and Theoretical Physics (DAMTP) of the University of Cambridge), use this form.