Travel stocks have had a rough start to 2025. But underneath the surface, one pocket of the travel industry continues to make waves.Momentum has begun to swarm in cruise stocks. Credit and debit card data from Bank of America showed monthly cruise spending in March increased 6.4% year-over-year compared to a 4.5% yearly gain in February. Cruise spending leapt 15.6% from the prior month versus a 3.5% drop in overall travel spending.With the tide smoothing over for cruise liners, is it time to hop aboard?The ...