The facility maintains a dedicated 'nursery' cabinet where visitors can observe the metamorphosis process from pupa to adult butterfly.
The climate inside the enclosure is kept at approximately 28-30 degrees Celsius to sustain tropical flora and butterfly activity.
The site uses organic pest control methods, employing specific insects rather than chemicals to protect the plants and butterflies.
Many of the butterfly species present are imported as pupae from specialized sustainable breeding farms in tropical countries.
The conservatory features a 'feeding station' where butterflies are provided with sugar-water solutions and overripe fruit to supplement natural nectar.
The architecture of the building incorporates glass roofing to maximize natural sunlight, which is essential for stimulating butterfly flight.
The facility is positioned adjacent to the historical Vliet waterway, an old canal connecting Leiden and Delft.
Butterflies at the Vliet (Vlinders aan de Vliet) is a controlled tropical conservatory housing hundreds of free-flying exotic butterflies in a reconstructed jungle environment. The facility utilizes a high-humidity, high-temperature climate system to simulate a rainforest ecosystem suitable for delicate species. Visitors walk along winding paths amidst nectar-rich plants and fruit feeding stations where butterflies congregate. The attraction focuses on the biological life cycle of butterflies, offering views of pupae and caterpillars in the nursery section. It is situated on the banks of the Vliet canal, integrating local water features with an indoor tropical habitat. The conservatory is designed for educational observation, allowing close-up interaction with butterfly species from various global regions.
The central feeding stations, where butterflies congregate in high densities on colorful fruit displays.
Wear layers, as the high humidity and tropical temperatures inside the conservatory are significantly warmer than the external Dutch climate.
Move slowly to encourage butterflies to land on you, as rapid movements will cause them to scatter.
Avoid using heavy perfume or insect repellent, as these can interfere with butterfly behavior and safety.
Assuming the climate inside will match the outside weather; failure to remove winter coats will lead to overheating.
Closed on Mondays during the low season; often closes for a winter break period from November through February.
Do not touch the wings of the butterflies, as oils from human skin can damage their delicate scales; do not pick plants or flowers.
