Is It True...????

Well i receive an email from my cousin stated there in sarawak river.....i was amazed with the picture shown....a giant snake...moving at the river.....to all sarawakian is it true....have all of you ever heard of this story...based on this picture the snake was so huge even anaconda not this huge......but yet people unable to see this huge snake...is this picture real or just a super impose.....to attract people curiosity