Yes, waterproof shoes are strongly recommended for a trip to Jungfraujoch (the "Top of Europe"), even in the summer. While the indoor Sphinx Observatory and the Ice Palace are fine with standard sneakers, many visitors want to walk out onto the Snow Fun Park or the Plateau to experience the glacier. This area is covered in permanent snow that can be slushy or wet, especially in the afternoon sun. Standard running shoes will quickly become soaked, leading to freezing feet in the sub-zero temperatures. In 2026, travel experts suggest sturdy hiking boots with GORE-TEX or a similar waterproof membrane and lugged soles for traction on the slippery ice. If you are visiting in the winter, the "walk from the train" can be through fresh snow, making waterproof footwear a "safety essential." If you don't want to pack heavy boots, peer-to-peer advice suggests bringing waterproof shoe covers or "crampon" attachments to provide grip and protection over your regular travel shoes.