Edo State is not a coastal state.
How are you sure that Ondo State has the longest coastline in West Africa
To support your claim, what's Ondo State coastline in KM Square

Gabkosh:
landlocked states are states that do not have a territory connected to the world ocean. They have no coastline.

The states that are not landlocked in Nigeria include:
Akwa Ibom

Bayelsa

Cross River

Delta

Edo

Lagos

Ogun

Ondo(with longest coastline in west Africa)

Rivers.

You don't know the meaning of the term 'Landlock'.
So calm down bro

gidgiddy:
Abia is not landlocked, check this map. If you take a good look at Abia state, you will see that the tip of that state opens up to a body of water that separates Rivers State and Akwai Ibom and flows into the Ocean. Abia state is not landlocked. Not even Imo is landlocked.