Some say the Souk of Agadir is the biggest souk of Africa. Even though this statement is not true, it is still very big and worth a visit during your time in Agadir. This big souk has a roof and contains 12 gates (bab). I would recommend to start at Bab 6, as this is a nice big gate from where you will get a nice entrance to the souk. Here you will find everything variating from fresh fish, meat, fruit and vegetables to tea pots, clothing and furniture. Masses of colourful fruits are stacked on top of each other and bananas are hanging from the roof. This is the place to shop your Moroccan souvenirs as the prices are better here than in the tourist shops.
My tip as a solo female traveller here is to, if you can, go with a local person. This will give you the freedom to just walk and look around without shop owners trying to sell you something. If you are not in the position to go with a local, I still recommend you to go as this, to me, felt more like real Morocco than the rest of the city.