//player is swimming and not flagged as in the water
    if(movement_info.flags & MOVEFLAG_SWIMMING && !(_player->m_UnderwaterState & UNDERWATERSTATE_SWIMMING))
    {
        if( ( _player->GetZoneId() == 46 ) && !(_player->m_UnderwaterState & UNDERWATERSTATE_LAVA) && (_player->GetPositionZ() > 125))
            _player->m_UnderwaterState |= UNDERWATERSTATE_LAVA;

        _player->RemoveAurasByInterruptFlag(AURA_INTERRUPT_ON_ENTER_WATER);

        // get water level only if it was not set before
        if(!pSession->m_bIsWLevelSet)
        {
            // water level is somewhere below the nose of the character when entering water
            pSession->m_wLevel = movement_info.z + _player->m_noseLevel * 0.95f;
            pSession->m_bIsWLevelSet = true;
        }

        _player->m_UnderwaterState |= UNDERWATERSTATE_SWIMMING;
    }