delivered the opinion of the court:
Plaintiffs, Michael Bucheleres and Betty Bucheleres Bivans, filed an action to recover damages against defendant, the Chicago Park District, resulting from personal injuries sustained by plaintiff Michael Bucheleres when he dove off a concrete seawall into Lake Mich*792igan and struck his head on the bottom of the lake. Defendant filed a motion for summary judgment which was granted. Plaintiffs now appeal. We reverse and remand.
On May 27, 1988, plaintiff Michael Bucheleres fractured his neck upon diving into the lake off a concrete seawall which extended approximately 100 feet into the lake from the Oak Street Beach at Division Street and North Lake Shore Drive (Division Ledge). Plaintiffs filed the present action.
On June 8, 1990, defendant filed an answer to plaintiffs’ second amended complaint. In its answer, defendant conceded that it maintained and controlled both the Oak Street Beach and the Division Ledge, but denied that it supervised, operated, managed, maintained or controlled the adjacent waters and littoral sand bottom of the lake on the date plaintiff Michael Bucheleres was injured. Defendant, however, admitted that it had the sand graded for it on December 22, 1987, and that it graded the sand from April 19, 1988, through April 22, 1988. Defendant also admitted that on April 23, 1987, William T. Donovan, a surveyor, made a written record that the sand bottom of the lake was 56/io feet below the top of the southeast corner of the Division Ledge and Oak Street Beach. Defendant also admitted that it knew of people who were diving from the Division Ledge into the lake during the summer of 1987, and that it knew that persons dove off the Division Ledge during the summers of 1983 through 1986 and struck their heads on the bottom of the lake near the seawall.
The trial court was furnished with deposition testimony from several witnesses including Greg Clausen, John Hamilton, Michael Morton and Joseph Pecoraro. Clausen, Hamilton and Morton were all present when plaintiff Michael Bucheleres dove into the lake, and Hamilton and Morton pulled plaintiff out of the lake when they saw him floating face down in the water. Morton, Hamilton and Clausen all testified that they did not see any warning signs in the area of the Division Ledge pertaining to diving or restrictions on diving on the day that plaintiff was injured.
Clausen further testified that in the years that he had visited the Division Ledge area prior to the accident, he had not seen any stenciled signs which said "No Diving” until the year after plaintiff’s accident.
Morton testified that the water near the Division Ledge was shallow on the date of plaintiff Michael Bucheleres’ dive. Morton testified that he himself brushed the bottom of the lake when he dove into the water from the Division Ledge on the same day. Morton stated that he was surprised when he touched the bottom of the lake because the *793water appeared to be deeper than it was when he looked down at the water before diving.
Hamilton, who had worked as a lifeguard at the Oak Street Beach during the summers of 1983 through 1985, recalled that during that time, the entire area east of the Division Ledge was hazardous for purposes of diving because of shallow water. Hamilton also testified that there were signs stenciled on the ground which read "No Diving.” Hamilton further testified that people dove off the Division Ledge and hit their heads on the bottom of the lake during this period of time.
Joseph Pecoraro, the general supervisor of beaches and pools for defendant at the time of plaintiff’s accident, was also deposed. Pec-oraro testified that during the spring of 1988, the water level in the lake had dropped and that the beach was graded every year in such a way that the sand was pushed out into the lake. Pecoraro further testified that he intended to have "No Diving” signs stenciled to the pavement in the area of the Division Ledge before the Oak Street Beach was opened, even if the beaches had not officially opened so that the signs could be read by people at any time.
Upon making the following statement, the trial court granted defendant’s motion for summary judgment:
"The main issue for us to consider in this case is whether the doctrine of open and obvious danger of a body of water is vitiated by the fact that the defendant affected the depth by adding sand and in grading the beach area at Oak Street Beach.
The plaintiff, I think it is uncontroverted in this case, that the plaintiff is swimming in the lake at that location for the first time in this season. The doctrine of open and obvious danger posed by a body of water with a sandy beach with shifts, with currents and disturbances, I don’t believe is vitiated by the fact that the Park District graded the beach and added sand which shifted in the waters thereby affecting the depth from the past year.
It is a large open lake, there are constantly shifting sands from currents. The day the plaintiff was injured was the first day he was swimming at that beach location that season.
It cannot be said that the lake presented perils that the plaintiff did not appreciate. He had a duty to test the depth of the water before diving.
An open and obvious danger of a body of water doctrine applies to this case. The [defendant] had no duty to warn nor can it be said that defendant created a condition under section 3 — 103 that was not reasonably safe when considering that the condition was sand at the bottom of Lake Michigan, a natural lake with uneven depths at various points and currents creating shifting sand levels.
*794The open and obvious danger posed by diving into the unchar-tered waters under the circumstances of this case must control this court’s determination. The peril of the lake bottom should have been anticipated.
The plaintiff did not strike his head on a pipe or tree trunk or any other object, the presence of which could not be reasonably anticipated. The plaintiff dived into the water for the first time that year without the requisite precaution of first ascertaining the depth of the water.
There is no Illinois authority on point which supports plaintiffs’ position and there is a great weight of authority in support of the defendant’s position.
Therefore, the defendant’s motion for reconsideration is granted, and the Chicago Park District is granted summary judgment ***.”
It is therefore plain that the summary judgment in favor of defendant was entered because of the open and obvious doctrine. The open and obvious doctrine provides that the duty of reasonable care owed by an owner or occupier of land to those lawfully on the premises does not extend to conditions which are known or obvious. The open and obvious doctrine, however, is not to be slavishly applied any longer as a per se rule to deny liability. Rather, a defendant’s duty to exercise reasonable care under all the circumstances of a case remains intact despite the existence of an open and obvious condition. (Deibert v. Bauer Brothers Construction Co. (1990), 141 Ill. 2d 430, 566 N.E.2d 239; Ward v. K mart Corp. (1990), 136 Ill. 2d 132, 146, 554 N.E.2d 223, 229; Smith v. Chicago Park District (1995), 269 Ill. App. 3d 812; Pullia v. Builders Square, Inc. (1994), 265 Ill. App. 3d 933, 638 N.E.2d 688.) Pursuant to Ward, the law regarding the duty and liability of possessors of land to invitees is as follows:
"A possessor of land is subject to liability for physical harm caused to his invitees by a condition on the land if, but only if, he
(a) knows or by the exercise of reasonable care would discover the condition, and should realize that it involves an unreasonable risk of harm to such invitees, and
(b) should expect that they will not discover or realize the danger, or will fail to protect themselves against it, and
(c) fails to exercise reasonable care to protect them against the danger.” Ward, 136 Ill. 2d at 146, 554 N.E.2d at 229.
It follows that even if a risk were to be considered open and obvious, a park district still has a duty to exercise reasonable care with respect to persons who use park district beach property for recreational purposes. Additionally, it follows that the duty may include warning potential divers. (See Deibert v. Bauer Brothers *795 Construction Co., 141 Ill. 2d 430, 566 N.E.2d 239; Pullia v. Builders Square, Inc., 265 Ill. App. 3d 933, 638 N.E.2d 688.) In the case sub judice, defendant concedes that it controlled both the Oak Street Beach and the Division Ledge. Although defendant denied having control over the adjacent waters and the sand bottom of the lake, Pecoraro’s testimony regarding the dumping and grading of sand shows that defendant did exercise control over these areas. Furthermore, defendant had actual knowledge of the shallow water because it created the condition by dumping and grading sand on the beach.
In addition, defendant had control over approximately 26 miles of lakefront property. Diving was permitted in some areas but not in others. Also, defendant concedes that signs delineated the areas in which diving was prohibited, and the record shows that defendant had placed signs in the area of the Division Ledge in the past. It follows that summary judgment should not have been entered for defendant in this case because there is a question of material fact as to whether signs prohibiting diving or warning of the dangers of diving in the area of the Division Ledge were sufficient at the time of the occurrence.
Accordingly, the summary judgment is reversed and this cause is remanded for further proceedings consistent with this opinion.
Reversed and remanded.
TULLY, J., concurs.