The decoration within "Muak Lek Arboretum" emphasizes harmony with nature by using local materials such as natural stone and wood to create walkways and benches that blend seamlessly with the riverside forest. A major highlight is the strategically placed vibrant yellow suspension bridge that contrasts beautifully with the lush greenery, serving as a striking focal point and a popular photo spot that perfectly connects the relaxation areas on both sides of the stream. Additionally, small garden pockets featuring colorful flowering plants are interspersed with modestly designed educational signage, ensuring the overall atmosphere remains organized yet impressively preserves the richness of the original forest landscape.