You can visit the Althorp House estate, located an hour and a half outside of London, during the summer when it is open to visitors. While guests can't go and visit the Princess' grave, they are able to leave messages and gifts at a memorial built across from it.
The memorial temple is decorated with a black-and-white marble cameo of Diana, with her name etched across the top (via Parade). It also featured a quote from the beloved princess: "Nothing brings me more happiness than trying to help the most vulnerable people in society. It is a goal and an essential part of my life. A kind of destiny. Whoever is in distress can call on me. I will come running wherever they are."
Despite what is available to the public, Spencer has noted that there have been attempts to breach security and intruders caught attempting to visit Diana's grave. In 2017 alone, there were four attempted break-ins (via Closer Weekly). "We've had four attempted break-ins towards her body in the last 20 years and I'm very glad we've seen all of them off," Spencer told BBC Radio 4. "There are some odd people out there and keeping her right here is the safest place."
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