Siem and Mitch (both 13) spotted a seal in the ‘Aardbeiensloot’, a ditch between the Ringvaart and the Uiterweg, closer to the Westeinderplassen. This event is highlighted in the article “Zeehond trekt verder door de provincie en brengt bezoekje aan Aalsmeer” published on 2025-09-22 12:30:00.
- Siem and Mitch (both 13) saw her.
- The seal was spotted in Aalsmeer.
- She traveled from the Amstel in Amsterdam.
- She likely swam through the Nieuwe Meersluis.
- The family often vacations on Vlieland.
- The seal was seen near Westeinderplassen.
The family often vacations in Vlieland, where they frequently see seals. Siem’s mother, Annemieke, shared that her son became a fan of seals during their trips. He was thrilled to spot one so close to home, initially thinking his friends were joking.
The seal had quite a journey to reach Aalsmeer. It was first spotted in the Amstel River near Park Somerlust in Amsterdam, where it seemed to enjoy itself for several days.
“We know it for sure, because we track him not,”
— Aukje Schep, Spokesperson
According to the spokesperson, to travel from the Amstel to Aalsmeer, the seal would encounter one lock: the Nieuwe Meersluis. It is likely that the seal swam through the lock with a boat and then passed by the Amsterdamse Bos and Schiphol before going under the Aalsmeerderbrug.
This article is based on original reporting from www.nhnieuws.nl: “Zeehond trekt verder door de provincie en brengt bezoekje aan Aalsmeer” published on 2025-09-22 12:30:00.
