Cacti with thorns (in this case Trichocereus peruvianus) are a great playground for spiders. Don't expect them to leave, bored and willingly, when they find one.
Thorn web
![Thorn web](/content/images/size/w300/2022/01/24_san_pedro_spider.jpg 300w,
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/content/images/size/w1140/2022/01/24_san_pedro_spider.jpg 1140w,
/content/images/size/w1920/2022/01/24_san_pedro_spider.jpg 1920w)
Cacti with thorns (in this case Trichocereus peruvianus) are a great playground for spiders. Don't expect them to leave, bored and willingly, when they find one.