I already expected & assumed Nereus would be involved ......

Indeed a major event on the Amstel river for first week of March 2024

Since 1933
Championship rowing
Multiple catagories

https://en.wikipedia.org/wiki/Head_of_the_River_Amstel

https://nl.wikipedia.org/wiki/Head_of_the_River_Amstel

https://www.iamsterdam.com/en/whats-...e-river-amstel

9 & 10 March 2024

https://headoftheriver.nl/nl/
https://headoftheriver.nl/en/

https://www.willem3.nl/roeien/wedstrijdroeien/head-of-the-river

Program
https://headoftheriver.nl/en/participants/timeschedule

Expect both riverbanks, bridges with spectators ...,
IC AMS will ofcourse host the parents, sponsors of the teams... and offer a superb commanding view

(days before might be practice & trial runs)

So that might explain the steep surcharge.....

PS: i did this rowing thing in my college years.....
nowadays it's a jolly mood to watch and see others sweat ....