What happens when cables need to cross an isthmus like the Suez? Looks like they don’t literally go through the canal from Suez to Port Said but they run pretty

What happens when cables need to cross an isthmus like the Suez? Looks like they don’t literally go through the canal from Suez to Port Said but they run pretty close by to minimize distance over land. Most connections appear to run from Suez to Alexandria and from Zafarana to Abu Talat. [1] [1]: https://www.middleeasteye.net/news/google-egypt-suez-digital-internet-flow-change-middle-east https://www.middleeasteye.net/news/google-egypt-suez-digital...