Here's why:

* Alignment: Spring tides occur when the Sun, Earth, and Moon are aligned. This happens during a new moon and a full moon.

* Combined Gravitational Pull: The combined gravitational pull of the Sun and Moon creates a stronger tidal force, resulting in higher high tides and lower low tides.

* "Springing Forth": The name "spring tide" is a bit misleading as it has nothing to do with the season. It comes from the Old English word "springan," which means "to spring forth" or "to rise."

Let me know if you'd like to know more about tides!