The phrase "activities highlights" is correct and usable in written English.
It can be used to refer to the key or notable aspects of various activities, often in a summary or report context.
Example: "The activities highlights from the event included engaging workshops, inspiring keynote speakers, and networking opportunities."
Alternatives: "key activities" or "highlights of activities".
The fact that regular users, which may be resource-constrained wireless devices, are involved in routing activities highlights the need for efficiency and compactness.
The design of policy controls oriented to stimulate specific industrial activities highlights a set of problems that involve the choice of the macro variables that make up the policy control, the determination of their aggregate amount as well as their sectoral composition and their inner balance.
Each of these preparatory activities highlights the importance of having an adequate number of skilled staff to conduct literature reviews and compile preliminary sets of rating items.
A recent study of OHRP enforcement activities highlights this problem; it found that "the agency continues to nitpick consent forms, depends upon (and demands) extensive documentation of compliance activities, and finds the remedy for most problems to be 'more' – review of studies, internal monitoring procedures, education, forms".
"Fred Thompson's activities highlight the gray area".
FORT HANCOCK an afternoon of activities highlighting the Nike Missile Era.
Few activities highlight the environmentalist's dilemma more acutely than flying.
These extra-textual activities highlight Kennedy's gift for deprecation, what The Scotsman recently called her "variations on the theme of a tortured artist".
"I am trying out as many of the programs as I can," she says, pointing to the schedule, some activities highlighted in yellow by her 12-year-old granddaughter, Ariel.
The behind-the-scenes activities highlight how seriously both are examining a run for the office, which, until now, Ms. Gillibrand had appeared likely to hold onto with little competition.
Each is discussed in turn, with specific activities highlighted.
