Hello friends!
Today I share with you the photos I took on my last day at sea during this season, with the end of the summer vacation.

Sea Urchin:
Echinoderms of the class Echinoidea include the spiny, spherical sea urchin.
![](https://images.ecency.com/DQmf3a33DtaDt6Q8q1BQqgvu2jFksUVsRXK5NPbM8y5oBgs/1694773116095.jpg)


Skeleton of a Sea Urchin (Paracentrotus lividus):

![](https://images.ecency.com/DQmXPWHMAWAaUv2gqDT5d43MveX1tp6PNNu4PTsXbkpCbaf/1694773925618.jpg)

![](https://images.ecency.com/DQmNUCWVFGAMqUbq8Es5DT4BGC1P9rGpXRNA9op9gDWdycb/1694773925764.jpg)

![](https://images.ecency.com/DQmPnCrttUdvuY9CRFeHgbPURaLNexoL3Zvg2PyeED9SG6t/1694773925969.jpg)


As for this one, frankly, I did not know his name.


![](https://images.ecency.com/DQmRfccGdHDqDZKRNzhk35kqwcDVFyYDqYZQqi46pmhxbLc/1694774453425.jpg)

![](https://images.ecency.com/DQmbPafhYhAMzLABPnuhZPxpW8vXkCTJNpj8SpWoDo92qXu/1694774453581.jpg)

![](https://images.ecency.com/DQmcnaP5nvjgoTyzSePskxu7uVzEyRbS5JLr8PNcyNnZLM3/1694774453849.jpg)

I quickly returned all these sea creatures to the water after taking photos.


![](https://images.ecency.com/DQmSQJ6ivZBzEynzZVKyLqe8GQJeqbnv4grdXsh2TFCidiR/1694774790210.jpg)
These photos were taken at Sidi Lakhdar Beach - Mostaganem - Algeria.
Device: Oppo A57