- Who
- Myrthe Sentener, Erik Sentener
- What
- 23 total number
- Where
- Netherlands (Lemmer)
- When
The most UNESCO world heritage site visits in 24 hours is 23 and was achieved by Myrthe Sentener and Erik Sentener (both Netherlands) from 28-29 September 2021.
This record was previously broken in 2019.