The 3 dolphins statue stands just before the beginning of 25th of August street at a Square called “Platia 18 Anglon” meaning Square of the 18 Englishmen.
The Statue was revealed at December 2008, sponsored by a dutch company named BLACKWOLF B.V.  of Silje & Gaja Johannessen Spaziani, aiming to raise awareness for the marine life protection. ?

Source and more information in Greek – [Patris Newspaper](https://archive.patris.gr/articles/147277)

In Greek:

Άγαλμα “Τα 3 δελφίνια” στην Πλατεία 18 Άγγλων Ηρακλείου Κρήτης