I didn't record a video about these things that I will write about here (at least yet, let me know in the feedback if you think I should record and add to this course), because they in my mind fall a bit under the category of "obvious differences between indoor and beach volleyball" rather than "nuanced differences between indoor and beach volleyball", but I realized I should mention these things anyway somewhere in this course, so here we go:

Beach volleyball attacking, especially at lower levels, but also in general, revolves less around power hits and more around soft shots than indoor volleyball. There are only 2 people covering the whole court, so it is possible to find an open spot easier than in indoor volleyball with 6 people covering the court. It is possible to play fairly high level beach volleyball (I'd say at least higher intermediate/lower advanced level for men, maybe even higher than that for women) without ever hitting the ball hard.

Some qualities that attackers who never hit hard might be helped by are:

1. Vision. This can mean the ability to look down at the court before hitting a soft shot (easier with relatively high setting in windless conditions), or using peripheral vision (easier when attacking with sets that are lower because there is a smaller angle difference between the ball and the court from the attackers eyes perspective.)
2. Precision (a combination of good technique to control the ball, being "calibrated" with the court size and sand depth, as well as understanding how the current wind consitions will impact the ball flight path.)
3. Hitting the ball in an unreadable and unpredictable way (the hitting technique looks more or less the same until the very last millisecond before hitting the ball, regardless of where on the court the player will put the ball.)
4. Strategical understanding of the game and opponent weakness (for example targeting a player deep if the player struggles to handle deep balls because of for example limited mobility or capacity to turn around quickly.)

In general also in beach volleyball attacking, if one plays with hard hits, it tends to be more important to have a high contact point and an ability to hit a lot of angles rather than to be able to hit with 110% power. Hitting at 70% power at a steep angle is often more effective for scoring points than hitting maximum power but with a lower contact point and/or straight ahead. Of course having the ability to hit with maximum power from a high contact point and in steep angles is a good quality to have, but requires a technical proficiency that is rarely seen at lower than elite levels of beach volleyball. The vast majority of players need to have a tradeoff between maximum speed and maximum height and angles available, and for those it is often more beneficial to prioritize height and angles over speed (which might not be the case in indoor volleyball, at least not at all levels.)

"The wristsnap" as a concept is debated whether it exists both in beach volleyball as well as indoor volleyball. Skeptics look at slowmotion video of "hits with a wristsnap" and end up believing that the ball is in contact with the hand for too short of a time for a wrist movement to be able to make a difference. "Believers" in the wristsnap debate (yes I am on this side, more about that soon) on the other side have often experienced a massive quality difference in hitting with a technique that for the attacker feels like a "snap the wrist" movement, and can sometimes explain why the movement might make a difference even if the ball indeed is in contact with the hand for a very short moment when looking at slowmotion video. Believers also acknowledge that it is possible to hit a volleyball well without a "wristsnap", meaning they see it as an additional "tool" or "possibility", rather than as a "must" for effective hard driven attacking. 

If you want to dive deeper into the "wristsnap mystery", I'd recommend watching this video, and maybe also more of the videos in the same video series: https://www.youtube.com/watch?v=bZd-UMM6is8&list=PLiBzv2Hnbv3I5iOtABKb3_7PHxmo7e4A6&index=14

The video above highlights a technique that is not a "full hit" that comes from the coiling and uncoiling of the core ("putting your whole body into the hit"), but rather just a more or less shoulder powered hit that uses the wrist mechanics to create a fair amount of speed into the ball, in a way that allows for very "sudden" direction changes of the ball - works well for the "hit at 70% strength from a high contact point into steep angles"-strategy.

The hardest hits in beach volleyball are just like in indoor volleyball powered by the coiling and uncoiling of the core. The "wrist mechanism" to add a "wristsnap" can be used on top of the power coming from the core or not, both types of hit can work well and be very hard. How to learn the coiling and uncoiling of the core is outside the scope of this course, but the foundation of it is the same as in indoor volleyball or for example throwing a baseball hard - to create a "Stretch Shortening Cycle" (SSC) over the core which then "throws" the arm away in a whiplike fashion, which means one barely needs to use any shoulder muscles in order to initiate the forward movement of the arm.