Lawful to you is game from the sea and its food as provision for you and the travelers, but forbidden to you is game from the land as long as you are in the state of ihram. And fear Allah to whom you will be gathered.
Abu Hurairah said:
"A man asked the prophet (sallallaahu alayhi wa sallam): 'O Messenger of Allah, we travel by sea and we take a little water with us, but if we use it for Wudu', we will go thirsty. Can we perform Wudu' with seawater?' The Messenger of Allah (sallallaahu alayhi wa sallam) said: 'Its water is a means of purification and its dead meat is permissible.'"
The Maaliki, Shaafi'i, and Hanaabilah all follow the Qur'aan and Sunnah in this matter and permit one to eat prawns.
Do not miss out on this delicious delight based on anyone's incorrect opinion regarding the matter.