Here are a few tips that have helped me. They have been gleaned from various sites. I know I'm missing a lot so please add your own!
1. Start at least two hours before low tide
2. Strong offshore (outgoing) winds will lower the water level and reduce the size of waves. These winds also spread out the sand at the waters edge. Incoming wind and waves tend to pile sand up.
3. High winds can alter the tide. The stage is set to hit the beach when the wind subsides.
4. Work areas that have a concentration of shells, gravel, and driftwood.
5. Look for tidal pools and streams draining back to the ocean.
6. Try starting from the high tide mark down to the water
1. Start at least two hours before low tide
2. Strong offshore (outgoing) winds will lower the water level and reduce the size of waves. These winds also spread out the sand at the waters edge. Incoming wind and waves tend to pile sand up.
3. High winds can alter the tide. The stage is set to hit the beach when the wind subsides.
4. Work areas that have a concentration of shells, gravel, and driftwood.
5. Look for tidal pools and streams draining back to the ocean.
6. Try starting from the high tide mark down to the water