I am an Indian citizen with a valid short term standard visitor visa for the UK and have used it once to travel to the UK recently. Given this scenario, I am eligible to travel to Ireland under the short stay visa waiver program without the need of any extra Irish visa.
However, I plan to make a day trip from Ireland to Northern Ireland by a tour company. I have learnt online that there may or may not be checks once I cross the border into the UK and exit from the UK while returning to Ireland. I will be having a valid visa to the UK of course and eligible to enter Ireland using the same visa on the way back as well.
My question is, how do I declare this visit of mine to the UK if I have to apply for another UK visa in the future, because there may be no one recording my entry and exit into/out of the UK? Do I need to report to the police in Belfast (I will be going here) or send any details to the Home Office or UKVI? If I happen to file another UK visa in the future, can I just honestly mention that I traveled to the Northern Ireland for a day and submit the tour tickets as proof even if no one checked or recorded my visit?
