The annual Springwatch event takes place in Stanmer Park today (Sunday 5 June).
Given the extra people expected to head to the park today for the event, the number 78 bus service will run every 15 minutes.
Buses to Stanmer Park from the centre of Brighton will be stopping slightly short though.
In a change from previous years, the number 78 bus will enter the park and travel up to just after the start of the one-way system.
A special turning area for buses will be set up on the right so passengers can be dropped off and picked up for the return to the city centre.
Buses will not be able to serve the village itself.
There have been problems in the park with the number of cars and the way they have been parked.
There may also be delays on the new Sussex University access road in Falmer at times due to the volume of traffic.