Each surgical specialty has their own website and events dedicated to medical students and foundation doctors. Many of them also offer prizes and awards, elective bursary as well as national and international research opportunities for medical students, which will be beneficial for your CV and future job application!
ENT UK http://sfo.entuk.org/
Oral and Maxfac https://www.baoms.org.uk/
Paeds surg http://www.baps.org.uk/
Trauma & Orthopaedic https://www.boa.ac.uk/
Royal Society of Medicine https://www.rsm.ac.uk/prizes-awards/students.aspx