See Marc's water features on Greg Wittstock, The Pond Guy:

• Waterfall on a Hill: https://www.youtube.com/watch?v=LQ3iXcmGZOA
• Blue Skies and Blue Ponds: https://www.youtube.com/watch?v=pEsRMNX-mcg
• Dream Pond with Mountain View: https://www.youtube.com/watch?v=pEsRMNX-mcg
• Keep the Cat Away from the Fish: https://www.youtube.com/watch?v=C1R_hX8mUZg

Visit Earth Energy Waterscapes: https://earthenergywaterscapes.com/

Visit Aquascape Inc: https://www.aquascapeinc.com/

Become a Certified Aquascape Contractor: https://www.aquascapeinc.com/professionals/become_a_certified_aquascape_contractor

Visit Aquascape University: https://www.aquascapeuniversity.com/