The UK government has notified its citizens that it is illegal to travel for leisure to Zimbabwe for now. This was contained in the regulations that were posted on the government’s official website that stated that citizens can only travel to Zimbabwe for legal reasons.
Said the UK government in a statement:
Foreign Travel Advice Zimbabwe
Under current UK COVID-19 restrictions, you must stay at home. You must not travel, including abroad, unless you have a legally permitted reason to do so. It is illegal to travel abroad for holidays and other leisure purposes.
If you intend to travel to the UK from abroad, including UK nationals returning home, you must provide evidence of a negative COVID-19 test result taken up to 3 days before departure. If you do not comply (and you do not have a valid exemption) your airline or carrier may refuse you boarding and/or you may be fined on arrival.
Before you return to the UK you must provide your journey and contact details. You must self-isolate when you enter the UK from any foreign country except Ireland, unless you have a valid exemption.
When you enter England from abroad (except Ireland), you must follow the new requirements for quarantining and taking additional COVID-19 tests. For those travelling from a country on the banned travel list you will be required to quarantine in a hotel. Different rules apply for arrivals into England, Scotland, Wales and Northern Ireland.
If you are legally permitted to travel abroad, check our advice on your country of destination. Some other countries have closed borders, and may further restrict movement or bring in new rules including testing requirements with little warning.
Meanwhile, the UK has told its citizens that by the 21st of June they will have lifted most of the COVID-19 regulations imposed in their country.
More: UK Government