Is it permissible to pray in the water without one's feet touching the ground, if it is impossible to go ashore to perform the prayer due to the distance from the coast?

It is impermissible to perform prayer while swimming in the sea for recreational purposes, because this leads to an inability to properly fulfill the pillars of prayer, and this invalidates it. One must go ashore to perform the prayer. It is advised to utilize time for what benefits one in matters of religion and worldly life, and to avoid being preoccupied with recreation over more important matters.